St. Francois County, MO ZIP codes
There are 9 ZIP codes in St. Francois County, MO, in 9 towns, from 63036 to 63653. The largest are 63640 (Farmington), 63601 (Park Hills) and 63628 (Bonne Terre). 2 more cross into it from neighbouring counties: 63645 and 63650.
The county seat is Farmington.
- ZIP codes
- 9
- Partly in it
- 2 more
- Towns
- 9
- County seat
- Farmington
- County FIPS
29187- State
- Missouri
- Population
- 66,999
- Median household income
- $57,477
- Land area
- 452 sq mi
- Metro area
- Farmington
St. Francois County ZIP codes by town
- Farmington (county seat)
- 63640
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in St. Francois County
These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of St. Francois County.
- 63645 Fredericktown · mostly in Madison County
- 63650 Ironton · mostly in Iron County
Map of St. Francois County ZIP codes
The ZIP codes of St. Francois County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
St. Francois County in numbers
About 66,999 people live in St. Francois County, in 24,816 households, the 17th most populous of Missouri's 115 counties. The median household income is $57,477 a year, 19% below the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $169,300 (26% below the Missouri median), and median gross rent is $794 a month. The median age is 39.5; 17.2% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 26 minutes.
| Population | 66,999 |
|---|---|
| Households | 24,816 |
| Median age | 39.5 |
| Median household income | $57,477 |
| Median home value | $169,300 |
| Median gross rent | $794 |
| Bachelor's degree or higher | 17.2% |
| Mean commute | 25.9 min |
| Population density | 148 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in St. Francois County
| Town | ZIP codes | Population |
|---|---|---|
| Farmington | 1 | 18,282 |
| Park Hills | 1 | 8,678 |
| Bonne Terre | 1 | 6,683 |
| Bismarck | 1 | 1,508 |
| Leadwood | 1 | 1,354 |
| Valles Mines | 1 | 1,066 |
| French Village | 1 | 1,001 |
| Doe Run | 1 | 775 |
| Knob Lick | 1 | 41 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with St. Francois County.
- Jefferson County (19)
- Washington County (10)
- Ste. Genevieve County (3)
- Madison County (2)
- Iron County (9)
Not sure you are in St. Francois County? What county am I in? answers from your location, near a county line included.
Every ZIP code in St. Francois County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
63036 | French Village , MO | Standard | 1,001 | $58,083 | $200,300 |
63087 | Valles Mines , MO | Standard | 1,066 | $60,313 | $217,200 |
63601 | Park Hills , MO | Standard | 16,389 | $54,753 | $126,300 |
63624 | Bismarck , MO | Standard | 3,447 | $41,984 | $90,400 |
63628 | Bonne Terre , MO | Standard | 16,416 | $63,602 | $189,100 |
63637 | Doe Run , MO | Standard | 759 | $54,926 | $152,500 |
63640 | Farmington , MO | Standard | 29,263 | $61,913 | $216,700 |
63651 | Knob Lick , MO | No street area | — | — | — |
63653 | Leadwood , MO | Standard | 1,186 | $38,021 | $53,900 |
Cite this page
zipcodes.pro. “St. Francois County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mo/county/st-francois
Underlying data is public domain or openly licensed — sources, vintages and licences.