See programs you qualify for
Get Matched Free →By Tyler Thompson · Licensed Real Estate Agent · Updated April 16, 2026
Homebuyer Programs in O'Fallon, IL (2026)
O'Fallon is a growing Metro East suburb of St. Louis located in St. Clair County, Illinois, with a population of about 32,262. With a median home price of roughly $338,000 and proximity to Scott Air Force Base, O'Fallon attracts many first-time buyers including active-duty military families using VA loans. Buyers in O'Fallon can layer federal mortgage programs with Illinois IHDA assistance (including the new IHDAccess Home with up to $15,000 at 0 percent interest), St. Clair County-level assistance through the County's Intergovernmental Grants Department, and nonprofit homeownership support from Lewis & Clark Habitat for Humanity (including its O'Fallon Area chapter).
County Programs in St. Clair County
| Program Name | Type | Amount | First-Time Only | Details |
|---|---|---|---|---|
| St. Clair County Homebuyer Assistance Program | Grant | Up to $4,000 | No | View → |
- Type:
- Grant
- Amount:
- Up to $4,000
- First-time only:
- No
State Programs in Illinois
| Program Name | Type | Amount | First-Time Only | Details |
|---|---|---|---|---|
| FHLBank Chicago Downpayment Plus (DPP) | Grant | Up to ,000 | No | View → |
| IHDA Access Deferred | Deferred Loan | 5% of purchase price up to ,500 | Yes | View → |
| IHDA Access Forgivable | Forgivable Loan | 4% of purchase price up to ,000 | Yes | View → |
| IHDA Access Repayable | Zero-Interest Loan | 10% of purchase price up to ,000 | Yes | View → |
| IHDA Mortgage Credit Certificate (MCC) | Tax Credit | Federal tax credit: 25% of annual mortgage interest (capped at ,000/year) | Yes | View → |
| IHDA SmartBuy | Forgivable Loan | ,000 DPA plus up to ,000 toward student loan payoff | Yes | View → |
| IHDAccess Home | Deferred Loan | Up to ,000 (6% of purchase price) | Yes | View → |
| Opening Doors / Abriendo Puertas | Forgivable Loan | Up to ,000 | Yes | View → |
- Type:
- Grant
- Amount:
- Up to ,000
- First-time only:
- No
- Type:
- Deferred Loan
- Amount:
- 5% of purchase price up to ,500
- First-time only:
- Yes
- Type:
- Forgivable Loan
- Amount:
- 4% of purchase price up to ,000
- First-time only:
- Yes
- Type:
- Zero-Interest Loan
- Amount:
- 10% of purchase price up to ,000
- First-time only:
- Yes
- Type:
- Tax Credit
- Amount:
- Federal tax credit: 25% of annual mortgage interest (capped at ,000/year)
- First-time only:
- Yes
- Type:
- Forgivable Loan
- Amount:
- ,000 DPA plus up to ,000 toward student loan payoff
- First-time only:
- Yes
- Type:
- Deferred Loan
- Amount:
- Up to ,000 (6% of purchase price)
- First-time only:
- Yes
- Type:
- Forgivable Loan
- Amount:
- Up to ,000
- First-time only:
- Yes
Federal Programs
| Program Name | Type | Amount | First-Time Only | Details |
|---|---|---|---|---|
| FHA Loans | Government-Insured Mortgage | Up to FHA county loan limits ($541,287 floor to $1,249,125 ceiling for single-family in 2026) | No | View → |
| FHLBA Community Partners Product | Forgivable Loan | Up to $20,000 in home purchase assistance for down payment and closing costs | No | View → |
| FHLBA First Time Homebuyer Product | Forgivable Loan | Up to $17,500 in home purchase assistance for down payment and closing costs | Yes | View → |
| FHLBA Workforce Housing Plus+ | Forgivable Loan | Up to $15,000 in home purchase assistance for down payment and closing costs | No | View → |
| Good Neighbor Next Door (HUD) | Government Property Sale Program | 50% discount off the list price of HUD-owned homes | Yes | View → |
| Home Possible Mortgage (Freddie Mac) | Government-Guaranteed Mortgage | Up to conforming loan limits ($832,750 standard / $1,249,125 high-cost in 2026); 3% minimum down payment | No | View → |
| HomeReady Mortgage (Fannie Mae) | Government-Guaranteed Mortgage | Up to conforming loan limits ($832,750 standard / $1,249,125 high-cost in 2026); 3% minimum down payment | No | View → |
| HUD $100 Down Program | FHA-Financed HUD REO Purchase | Only $100 down payment required (vs. standard 3.5% FHA down payment). HUD may also pay up to 3% of buyer's closing costs. | No | View → |
| USDA Rural Development Loans | Government-Guaranteed Mortgage | 100% financing (no down payment required); loan amount up to appraised value | No | View → |
| VA Loans | Government-Guaranteed Mortgage | No loan limit for veterans with full entitlement (0% down at any price); partial entitlement subject to conforming limits ($832,750 standard in 2026) | No | View → |
- Type:
- Government-Insured Mortgage
- Amount:
- Up to FHA county loan limits ($541,287 floor to $1,249,125 ceiling for single-family in 2026)
- First-time only:
- No
- Type:
- Forgivable Loan
- Amount:
- Up to $20,000 in home purchase assistance for down payment and closing costs
- First-time only:
- No
- Type:
- Forgivable Loan
- Amount:
- Up to $17,500 in home purchase assistance for down payment and closing costs
- First-time only:
- Yes
- Type:
- Forgivable Loan
- Amount:
- Up to $15,000 in home purchase assistance for down payment and closing costs
- First-time only:
- No
- Type:
- Government Property Sale Program
- Amount:
- 50% discount off the list price of HUD-owned homes
- First-time only:
- Yes
- Type:
- Government-Guaranteed Mortgage
- Amount:
- Up to conforming loan limits ($832,750 standard / $1,249,125 high-cost in 2026); 3% minimum down payment
- First-time only:
- No
- Type:
- Government-Guaranteed Mortgage
- Amount:
- Up to conforming loan limits ($832,750 standard / $1,249,125 high-cost in 2026); 3% minimum down payment
- First-time only:
- No
- Type:
- FHA-Financed HUD REO Purchase
- Amount:
- Only $100 down payment required (vs. standard 3.5% FHA down payment). HUD may also pay up to 3% of buyer's closing costs.
- First-time only:
- No
- Type:
- Government-Guaranteed Mortgage
- Amount:
- 100% financing (no down payment required); loan amount up to appraised value
- First-time only:
- No
- Type:
- Government-Guaranteed Mortgage
- Amount:
- No loan limit for veterans with full entitlement (0% down at any price); partial entitlement subject to conforming limits ($832,750 standard in 2026)
- First-time only:
- No
Nonprofit Programs
| Program Name | Type | Amount | First-Time Only | Details |
|---|---|---|---|---|
| Lewis & Clark Habitat for Humanity | Zero-Interest Loan | Zero-interest mortgage on affordable Habitat home | No | View → |
- Type:
- Zero-Interest Loan
- Amount:
- Zero-interest mortgage on affordable Habitat home
- First-time only:
- No
How to Apply
Build your team. Choose an Illinois-licensed lender with experience on IHDA products and, if applicable, VA loans for Scott Air Force Base buyers. Pair with a local agent who works the Metro East.
Review your income and credit. IHDAccess Home in St. Clair County is available to first-time buyers earning up to approximately $128,110 (varies by household size). Most programs require a 640 or higher credit score.
Complete HUD-approved homebuyer education. The 8-hour course is required for nearly every IHDA and St. Clair County program.
Get pre-approved. Your lender will confirm which combinations of first mortgage (FHA, VA, USDA, or conventional) and DPA (IHDAccess Home, Access Forgivable, Access Deferred, St. Clair County DPA) work for your situation.
Identify a property in St. Clair County. Eligibility for county-level assistance requires the home to be located within St. Clair County. O'Fallon qualifies.
Apply in parallel. Submit DPA applications through your IHDA-approved lender and contact the St. Clair County Intergovernmental Grants Department (located at 19 Public Square Suite 200, Belleville, IL 62220) to apply for county assistance.
Close and maintain records. Most Illinois and St. Clair County DPA is forgivable or deferred over a multi-year occupancy period. Keep your closing package.