Zip Code 63640
Farmington, Missouri — St. Francois County
📍 ZIP code 63640 is in Farmington, St. Francois County, Missouri.
ZIP code 63640 is located in Farmington, St. Francois County, Missouri. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 28,800. The area code for ZIP code 63640 is 636.
Quick Answer
Zip code 63640 is in Farmington, Missouri (St. Francois County). It has a population of 28,800, median household income of $55,926, and median home value of $195,900.
Population
28,800
Income
$55,926
Home Value
$195,900
Climate
89°F / 23°F
About Zip Code 63640
Zip code 63640 is located in Farmington, Missouri, within St. Francois County. Home to approximately 28,800 residents, this area sits at an elevation of 856 ft and falls within the Central (CST/CDT) timezone. The local area code is 636.
The median household income is $55,926 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $195,900, and the cost of living index is 69 (31% below the national average of 100).
Summers average a high of 89°F while winters drop to 23°F. The area receives about 45 in of rain and 9 in of snow annually. The zip code covers 208.3 square miles of land area and 0.8 square miles of water.
Key Statistics
28,800
$55,926
$195,900
Central (CST/CDT)
636
856 ft
208.3 sq mi
39.5
11,381
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Compare With Nearby Zip Codes
| Metric | 63640 | 63637 | 63601 | 63653 | 63624 | 63670 |
|---|---|---|---|---|---|---|
| City | Farmington, MO | Park Hills, MO | Desloge, MO | Park Hills, MO | Bismarck, MO | Sainte Genevieve, MO |
| Population | 28,800 | 894 | 16,434 | 1,418 | 3,507 | 12,294 |
| Median Income | $55,926 | $51,719 | $56,798 | $35,694 | $40,635 | $60,235 |
| Home Value | $195,900 | $150,000 | $114,400 | $51,600 | $94,200 | $205,700 |
| Cost of Living | 69 | 67 | 60 | 60 | 60 | 75 |
| Median Age | 39.5 | 34.2 | 38.1 | 27.9 | 40.3 | 42.3 |
Cost of Living
100 = National Average. Farmington's cost of living is 31% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
3.5x
Demographics
Zip code 63640 has a population of 28,800 people with a median age of 39.5. There are 11,381 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Farmington (63640) population trend from 2010 to 2024
↓ -5.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
23°F
45 in
9 in
Farmington experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 23°F. The area receives about 9 in of snow per year.
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Housing & Economy
Median Home Value
$195,900
Median Household Income
$55,926
With 11,381 housing units across 208.3 square miles, 63640 has a housing density of 55 units per square mile. The home price-to-income ratio is 3.5x.
Location & Geography
Latitude
37.7547°
Longitude
-90.3806°
Land Area
208.3 sq mi
Water Area
0.8 sq mi
Nearby Zip Codes
Zip codes closest to 63640 (Farmington, MO) with distances:
All Zip Codes in Farmington, MO
Other zip codes serving Farmington:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 63640's $55,926. A way to compare Farmington to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 63640 (Farmington, MO). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Farmington, Missouri?
Farmington, Missouri uses zip code 63640 along with 1 other zip codes.
What county is zip code 63640 in?
Zip code 63640 is located in St. Francois County, Missouri.
What is the population of zip code 63640?
The population of zip code 63640 is 28,800 with a median age of 39.5.
Is 63640 in Farmington, Missouri?
Yes, zip code 63640 is in Farmington, St. Francois County, Missouri. The area code is 636.
Frequently Asked Questions
What city is zip code 63640 in?
Zip code 63640 is in Farmington, Missouri. It is part of St. Francois County and uses the Central (CST/CDT) timezone.
What is zip code 63640?
Zip code 63640 is a U.S. postal code in Farmington, Missouri (St. Francois County). It has a population of 28,800 and covers 208.3 square miles.
What is the population of zip code 63640?
The population of zip code 63640 (Farmington, MO) is 28,800 with a median age of 39.5. There are approximately 11,381 housing units in this area.
What is the median income in zip code 63640?
The median household income in zip code 63640 (Farmington, MO) is $55,926 per year. The cost of living index is 69 (100 = national average).
What is the average home price in zip code 63640?
The median home value in zip code 63640 (Farmington, MO) is $195,900. The cost of living index is 69 compared to the national average of 100.
What county is zip code 63640 in?
Zip code 63640 is located in St. Francois County, Missouri. The primary city is Farmington.
What is the area code for zip code 63640?
Zip code 63640 in Farmington, MO uses area code 636. It is located in the Central (CST/CDT) timezone.
Is zip code 63640 a good place to live?
Zip code 63640 (Farmington, MO) has a cost of living index of 69 (100 = national average), a median household income of $55,926, and median home values of $195,900. The median age is 39.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 63640?
The cost of living index for zip code 63640 (Farmington, MO) is 69, where 100 represents the national average. This area is below the national average. Median home value: $195,900.
What schools serve zip code 63640?
Zip code 63640 in Farmington, Missouri is served by the local school district of St. Francois County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.