Clay County, Florida: A Local Guide for Home Buyers and Homeowners
Clay County covers 604.61 square miles of land along the St. Johns River, and about 240,000 people live here. Its seat, Green Cove Springs, grew up around a sulfur spring that still feeds a public swimming pool before it runs into the river.
This guide covers what Clay buyers and homeowners need before they sign anything: how the loan limits and down payment math work, the county’s SHIP programs and the statewide seconds, homestead filing in Green Cove Springs and Orange Park, how Black Creek and the evacuation zones work, and which utility serves which part of the county.
Every source for this guide is listed at the bottom of the page.
- County seatGreen Cove Springs
- Founded1858, from part of Duval County
- Named forHenry Clay, U.S. senator from Kentucky
- PopulationAbout 240,000
- Land area604.61 sq mi
- FHA limit, 1 unit$580,750 in 2026
- Conventional limit, 1 unit$832,750 in 2026
- School districtClay County District Schools
- Cities and areas
- Homes and loan limits
- Down payment help
- Property taxes
- Storms and insurance
- Jobs, schools, commute
- Parks and local favorites
- Moving checklist
- Buying or refinancing
Towns and communities across Clay County
Clay was created on Dec. 31, 1858, from part of Duval County, and named for Henry Clay, the Kentucky senator and Secretary of State. Middleburg was the first county seat, from 1858 to 1874, before the seat moved to Green Cove Springs.
Green Cove Springs, Keystone Heights and the town of Orange Park have their own municipal governments. Fleming Island and Middleburg are unincorporated communities. Listings will also send you to Lakeside, the Oakleaf area, Lake Asbury and Penney Farms, so pin down which address you’re looking at before you compare houses.
Green Cove Springs
Green Cove Springs sits on a bend of the St. Johns River, built around a sulfur spring locally called the “Original Fountain of Youth.” The spring drew 1800s tourists, President Grover Cleveland among them, and it still feeds the public pool beside the river. The historic district and the Clay County Courthouse are on the National Register of Historic Places.
Reynolds Park and the old Navy base
The Navy opened an air station here in 1940, and until 1960 its 13 river piers held about 500 mothballed ships of the Atlantic Reserve Fleet. The city annexed the base in 1984 for the Clay County Port and Reynolds Industrial Park, and the airfield is now Reynolds Airpark, with a 5,000-foot runway.
Orange Park
Orange Park is a town of about 5.3 square miles on the St. Johns River in the county’s northeast corner, founded in 1877. US 17, called Park Avenue here, runs north to I-295, and NAS Jacksonville is less than 6 miles away. The River Road Historic District runs parallel to the river under century-old trees, and Doctors Lake separates the town and Lakeside from Fleming Island.
Fleming Island
Fleming Island is bounded by the St. Johns River, Doctors Lake, Black Creek and Swimming Pen Creek, about 21 miles southwest of downtown Jacksonville off US 17. It was the Hibernia plantation in 1790 and a Navy auxiliary airfield in 1942.
After the old runways came out in the late 1990s, planned communities like Eagle Harbor, Pace Island and Fleming Island Plantation filled in, and a 7-mile, 8-foot-wide path now runs the length of the island.
Middleburg
Middleburg grew up on Black Creek around ferry crossings in the 1820s and was the county seat until 1874. The Middleburg Historic District covers the old village along the creek, the Black Heritage Museum is here, and Clay County Utility Authority has its offices on Old Jennings Road.
Keystone Heights
Keystone Heights covers about 1.09 square miles in the southwest lake district, between Lake Brooklyn and Lake Geneva. Pittsburgh developer John J. Lawrence founded it, it was named in 1922 for Pennsylvania’s “Keystone State” nickname, and it incorporated in 1925. Clay Electric Cooperative is headquartered here, and Keystone Heights Airport, a public-use general aviation field, sits on the Clay-Bradford line.
Camp Blanding
Camp Blanding, established in 1939, covers about 73,000 acres around Kingsley Lake and was a major infantry training center in World War II. The county’s highest point, 259 feet, is on the western border inside the base.
Buying a home in Clay and the loan limits
Clay is part of the Jacksonville metro for loan limits. You’ll find the FHA and Conventional limits for Clay County in the table below, and because HUD and FHFA reset them every January, the table refreshes itself rather than leaving an old figure on the page.
Here’s the down payment math as a plain example, not a Clay price: on a $300,000 purchase, FHA’s 3.5% minimum down payment is $10,500, and the county and state programs below can cover part or all of it. Call or text us at 954-816-8820 with the address in Oakleaf, Middleburg or Green Cove Springs and we’ll run the numbers on that exact house.
If you’re renting in Orange Park or Fleming Island now, call 888-601-8344 and we’ll show you what your rent money could carry as a mortgage payment in Clay.
| Loan limits in Clay County for 2026 | Maximum loan |
|---|---|
| FHA, single-family home | $580,750 |
| FHA, two-unit home | $743,450 |
| FHA, three-unit home | $898,700 |
| FHA, four-unit home | $1,116,850 |
| Conventional, single-family home | $832,750 |
HUD sets the FHA limits and FHFA sets the Conventional limits for every county, and both change each January. This table refreshes itself from HUD's published figures.
Ask one question early: is the house on central water and sewer, or a well and septic system? Clay County Utility Authority says its water and sewer area is expanding with new neighborhoods, but not every lot is on it, and the county’s SHIP plan sets aside extra money for a new well and septic system where one is needed. Out by Keystone Heights and the lakes, also ask your insurer about sinkhole coverage before you commit.
Down payment help for Clay County buyers
Clay’s local help comes through SHIP, the state housing money the county spends under its Local Housing Assistance Plan, and some of it runs through the Housing Finance Authority of Clay County in Orange Park. Florida Housing’s statewide seconds can be layered on top for buyers who qualify.
Clay County SHIP first-time homebuyer assistance
The Housing Finance Authority of Clay County runs a first-time homebuyer program funded with SHIP. It’s a 0% deferred loan with a 30-year term, and it isn’t forgiven: you repay it at the end of the term, or sooner if you sell, rent the home out or lose homestead. It serves very-low, low and moderate income households and some households above that range, and the home must be in Clay County.
The HFA’s award size, income ceilings and open dates can all shift during the year as SHIP money comes in and goes out. Before you write an offer anywhere from Lakeside to Keystone Heights, call 888-601-8344 and we’ll check with the HFA on Kingsley Avenue what the program is paying and whether it’s taking files for that address. HFA notice address: 1279 Kingsley Ave., Suite 118, Orange Park, FL 32067.
Clay County SHIP nonprofit new construction
Clay’s SHIP plan also helps extremely-low, very-low and low income buyers purchase homes built by nonprofit developers, with the local Habitat for Humanity getting priority. The help is a deferred 0%, 30-year forgivable loan, extra money can go toward a well and septic system if the lot needs one, and the buyer has to meet a Clay residency requirement.
Nonprofit homes come up one at a time, and the money behind them moves with each SHIP round. Call or text us at 954-816-8820 and we’ll ask the county whether a Habitat or other nonprofit home in Clay is open for an application before you get your heart set on one.
Florida Hometown Heroes (statewide)
Hometown Heroes comes from Florida Housing, the state’s housing finance agency, and it bundles a 30-year fixed first mortgage with a second that covers down payment and closing costs. That second charges 0%, needs no monthly payment and comes due when you sell, refinance, pay off the loan or move out. Florida Housing doesn’t forgive it.
One buyer on the loan needs a full-time job with an eligible Florida-based employer: health care, K-12 schools, first response, public safety, the courts or licensed child care. Camp Blanding makes the military rule worth knowing here. Active duty qualifies with any employer, and veterans, Reserve and National Guard members qualify through any full-time job with a Florida-based employer. Remote roles, part-time hours and offer letters fall outside the rules.
Florida Housing assistance can be used once in a lifetime, so it’s worth getting the right Clay home and the right lender the first time. Funds are reserved loan by loan, so call 888-601-8344 before you sign a contract and we’ll confirm Hometown Heroes is reserving and that your income and the price fit Clay’s limits.
FL Assist, HLP and HFA Advantage PLUS (statewide)
FL Assist is a 0% deferred second mortgage for the down payment and closing costs, with no monthly payment, repaid on sale, refinance, transfer or when you move out. It rides on a Florida Housing first mortgage, FHA, VA, USDA or Conventional through HFA Preferred or HFA Advantage, and a Clay buyer can use it whether the house is in Oakleaf or Keystone Heights. The HLP second carries a small fixed monthly payment over 30 years, and HFA Advantage PLUS pairs a Freddie Mac Conventional first with a second that’s forgiven over 5 years while you live in the home.
Florida Housing only takes these through participating lenders and brokers like us. Which second works best next to a Clay SHIP loan depends on the rules in force the week you apply, so call or text us at 954-816-8820 and we’ll line them up for the house you’re considering.
FHA 100% financing pairs a 96.5% FHA first mortgage with a down payment assistance second, so in many cases the down payment can come out of your pocket entirely. Before you sign a contract in Orange Park, Fleming Island or Middleburg, call 888-601-8344 and we’ll tell you which of these seconds has money and which one stacks best with your first mortgage.
Property taxes and your homestead exemption
Clay homeowners who live in the house file for the Florida homestead exemption with the Clay County Property Appraiser. The exemption takes up to $50,000 off your taxable value: the first $25,000 applies to all property taxes and the rest to non-school taxes. Save Our Homes then holds yearly increases in assessed value to 3% or the change in CPI, whichever is lower, and portability lets you move some or all of that difference to your next Florida homestead.
Homestead applications are due March 1, and you must hold title and meet every requirement on January 1, so you file by March 1 of the year after you close. Clay accepts late filings with extenuating circumstances until the 25th day after TRIM notices are mailed, usually mid-August. You can file in person, by email or by mail, with no appointment.
Once you have it, the exemption renews automatically each January, and a renewal notice goes out by February 1. If your mortgage has an escrow account, your monthly payment covers the Clay tax bill and the lender sends it in.
Clay County Property Appraiser
Main office: 2nd floor, Clay County Administration Building, Green Cove Springs (mail: P.O. Box 38, Green Cove Springs, FL 32043)
Branch inside the Tax Collector’s office at 1518 Park Ave., Orange Park; Keystone Heights branch at 7380 SR 100 on the first Tuesday of each month
Phone: 904-284-6305
Homestead filing and property search: ccpao.com
Tax bills and payments: Clay County Tax Collector
Black Creek, storms and insurance
Two days after Hurricane Irma passed in 2017, Black Creek set a record flood stage of 30.52 feet. A year earlier, Hurricane Matthew knocked out power to about a fifth of Clay residents, and evacuation orders covered the county on Oct. 6, 2016.
Clay evacuates by zones A, B and C, which reflect storm tide and flood risk rather than storm category. Sinkholes formed several of the lakes at Gold Head Branch State Park, and the southwest lake district drains down into the Floridan aquifer.
- Look up your evacuation zone on the county’s ClayView map using the Evacuation Zones layer, and call Clay County Emergency Management at 904-284-7703 with questions.
- Near Black Creek, Doctors Lake or the river especially, check the flood zone on the FEMA Flood Map Service Center before you make an offer. A house in a high-risk zone, one starting with A or V, needs flood insurance for an FHA, VA or other federally backed loan.
- Around Keystone Heights and the lake district, ask your insurer how sinkhole coverage works on the policy. On any Clay house, the age of the roof moves the quote the most, and a wind mitigation inspection can bring the premium down.
- Sign up for Alert Clay emergency notifications through the county’s emergency management page.
Jobs, schools and getting around
Camp Blanding Joint Training Center is the primary training base of the Florida National Guard, including the 53rd Infantry Brigade, and it also hosts ROTC and counterdrug training and Florida’s alternate Emergency Operations Center. On the river, the Clay County Port and Reynolds Industrial Park occupy the old NAS Green Cove Springs.
Clay sits close to Jacksonville’s job centers, and many residents work across the county line. The county describes itself as about 10 minutes from NAS Jacksonville, 20 minutes from downtown Jacksonville and 30 minutes from Jacksonville International Airport.
Schools and colleges
Public schools are run by Clay County District Schools, with the district office at 900 Walnut St., Green Cove Springs.
St. Johns River State College has its Orange Park campus in the county.
Getting around
US 17 is the main north-south road on the east side, through Orange Park, Fleming Island and Green Cove Springs, and US 301 runs through the west. SR 16 crosses from Starke past Camp Blanding and Penney Farms to the Shands Bridge, and SR 21 and SR 100 also cross the county.
The First Coast Expressway (SR 23) opened its first segment in 2019; before that, Clay had been the largest Florida county without a limited-access highway. JTA runs Clay Community Transportation, including Clay Express-Select from Orange Park and Fleming Island to the Jacksonville Regional Transportation Center. Commercial flights go through Jacksonville International, while Reynolds Airpark and Keystone Heights Airport handle general aviation.
Springs, lakes and local favorites
Mike Roess Gold Head Branch State Park
Gold Head Branch, one of Florida’s first state parks, covers about 600 acres near Keystone Heights at 6239 SR 21. It has a steep ravine of seepage springs, sinkhole lakes, and lakefront cabins the Civilian Conservation Corps built in the 1930s that are still rented.
The Keystone Heights lakes
Lake Brooklyn, Lake Geneva and their neighbors recharge the Floridan aquifer. Many nearly dried up in the early 2000s and came back in the 2010s, and the Black Creek Pipeline, a project begun in 2022, moves water from Black Creek to Alligator Creek near Lake Brooklyn to help restore levels.
Fleming Island parks
Black Creek Park on the island’s south end has nature trails, and Moccasin Slough on the north end has a small-boat canal and park. Doctors Lake separates the island from Orange Park and Lakeside.
State forests and Kingsley Lake
Jennings State Forest and Belmore State Forest, together with Gold Head Branch, form a buffer around Camp Blanding. Kingsley Lake sits inside the base.
Clay County Agricultural Fair
The fair at the fairgrounds, 2493 SR 16 W in Green Cove Springs, brings livestock exhibits, an Early Florida Village, AG-Town, midway rides, concerts and a demolition derby.
Museums and markets
The Camp Blanding Museum and Memorial Park, open since 1990 and free, sits outside the base entrance with outdoor aircraft and vehicle displays. The Clay County Historical Museum is in Green Cove Springs, where the Third Saturday Market in the Park runs every month.
Moving to Clay County: your first-month checklist
- Electric: Clay Electric Cooperative, a member-owned, not-for-profit utility organized in 1937, is based at 65 SW Citrus Ave. in Keystone Heights and has district offices including Orange Park. Green Cove Springs customers can pay city utility bills online on the city’s site.
- Water and sewer: Clay County Utility Authority, 3176 Old Jennings Rd., Middleburg; 904-272-5999. Check its site for watering days, which change with water shortage restrictions.
- Driver license, tag and property tax: Clay County Tax Collector offices include 1518 Park Ave. in Orange Park and 7380 SR 100 in Keystone Heights.
- Homestead: file at the Property Appraiser’s Green Cove Springs office or the Orange Park branch at 1518 Park Ave. by March 1 of the year after you close.
- County questions: go to claycountygov.com. A five-member Board of County Commissioners runs the county.
- Hurricane season: Clay County Emergency Management, 904-284-7703, and the Evacuation Zones layer in ClayView.
Buying or refinancing in Clay County with AAA Capital Funding
Buying a home
FHA is the loan most of our Clay buyers use: 3.5% down and flexible credit guidelines, and Clay County’s SHIP program and the Florida Housing programs above can go with it. With NAS Jacksonville about 10 minutes away and Camp Blanding in the county, we write VA loans too, with no down payment for eligible veterans and service members, along with Conventional loans, Hometown Heroes, DSCR loans for rentals and FHA 100% financing.
AAA Capital Funding has worked as a licensed Florida mortgage broker since 1997 and lends statewide in all 67 Florida counties, so a move from Clay to Tampa or Miami doesn’t mean starting over with someone new. We send your file to multiple wholesale lenders and tell you what you qualify for before you start touring Fleming Island or Lake Asbury.
Refinancing the home you have
A refinance can lower your monthly payment, take cash out to hook up to Clay County Utility Authority sewer or replace a roof, pay off higher-interest debt, or buy out someone else’s share of the home.
Call 888-601-8344 and we’ll set your Clay payment next to the new one, with the cash out and the closing costs on the same page, so you can decide on real numbers.
Clay County questions we hear a lot
What is the FHA loan limit in Clay County?
Clay uses the Jacksonville metro’s limits, and you’ll find the FHA figures for one to four units, plus the Conventional single-family limit, in the live table in the homes section. HUD and FHFA reset them every January, and the table updates itself when they do.
Is there down payment assistance in Clay County?
Yes. The Housing Finance Authority of Clay County runs a SHIP-funded first-time homebuyer program, a 0% loan deferred for 30 years, and statewide programs like Hometown Heroes and FL Assist work here too. Clay’s SHIP dollars come in rounds, so call us for the program’s status before you build an offer around it.
Is every house in Clay County on central water and sewer?
No. Clay County Utility Authority’s service area grows with new neighborhoods, but some lots still use a well and septic system. Ask before you make an offer, and budget for the inspection that goes with it.
When do I file for homestead in Clay County?
By March 1, with the Clay County Property Appraiser in Green Cove Springs or at the Orange Park branch. You must hold title on January 1, so you file by March 1 of the year after you buy. After that it renews automatically each January.
Do I need flood insurance in Clay County?
You need it for a federally backed mortgage when FEMA maps the Clay address in a high-risk zone. Black Creek hit a record 30.52 feet after Hurricane Irma in 2017, so get a quote on anything near the creek, Doctors Lake or the river even if the lender doesn’t require it.
Sources for this guide (25)
- U.S. Census Bureau QuickFacts: Clay County, FL
- Clay County, Florida (Wikipedia, history and roads)
- Middleburg, Florida (Wikipedia)
- Green Cove Springs, Florida (Wikipedia)
- Orange Park, Florida (Wikipedia)
- Fleming Island, Florida (Wikipedia)
- Keystone Heights, Florida (Wikipedia)
- Camp Blanding (Wikipedia)
- Florida State Parks: Mike Roess Gold Head Branch
- News4JAX: Hurricane Irma record flooding
- Clay County Board of County Commissioners
- Clay County Emergency Management
- Clay County District Schools
- Clay Electric Cooperative
- Clay County Utility Authority
- City of Green Cove Springs
- Clay County Agricultural Fair
- Clay County Property Appraiser
- Florida Department of Revenue: Property tax exemptions
- Effects of Hurricane Matthew in Florida (Wikipedia)
- FEMA Flood Map Service Center
- Clay County Local Housing Assistance Plan (SHIP)
- Florida Housing: Hometown Heroes
- Florida Housing: Homebuyer programs
- St. Johns River State College (Wikipedia)
AAA Capital Funding, Inc. NMLS #374739. Jason J. Sarji, NMLS #374700. Licensed Florida mortgage broker serving Clay County and all 67 Florida counties since 1997. Equal Housing Opportunity.
You work with the same person from start to finish, in every county in Florida.
We've been closing Florida loans since 1997, in all 67 counties. If you want to know what's possible in Clay County, call 888-601-8344 or text 954-816-8820. One call, under ten minutes. No application needed to start.
AAA Capital Funding, Inc. · NMLS #374739 · Jason J. Sarji, NMLS #374700




