Residential delivery area · Missouri
ZIP Code 63012: Barnhart, MO
ZIP code 63012 uses the postal name Barnhart, Missouri and lies entirely in Jefferson County (Census 2020 ZIP-county file). About 10,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $96,099 (Census Bureau, ACS 2020-2024). By Census place, 20% of its land lies in Barnhart (a census-designated place), and 2% in smaller places; 77% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Barnhart · its only residential ZIP
- County
- Jefferson County
- Census places
- Barnhart census-designated place
- Metro area
- St. Louis, MO-IL
- House district
- MO-8 119th Congress
- State
- Missouri
- Time zone
- Central
- Land area
- 25.1 sq mi · 410 people per sq mi
Where is ZIP code 63012?
63012 centers on 38.347°, -90.454° and covers 25.1 square miles of land plus 0.2 of water. It borders 5 ZIP codes: 63052, 63070, 63051, 63050, 62295.
The map draws ZIP code areas only. For the streets inside 63012, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 63012 compare with the rest of Jefferson County?
| Measure | 63012 | In Jefferson County | In MO |
|---|---|---|---|
| People (ACS 2020-2024) | 10,314 | 12th of 25 | 186th of 1,035 |
| Median household income | $96k | 3rd of 17 | 57th of 479 |
| Median home value | $251k | 6th of 20 | 130th of 494 |
Its median household income is higher than in 78% of U.S. residential ZIP codes, and it is denser than 70% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 63012?
The 2020 Census counted 10,711 people in 63012; the ACS, which samples households over 2020-2024, estimates 10,314. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 10,314±1,080 (90% margin)
- 2020 Census count
- 10,711
- Households
- 3,857
- Median age
- 38.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 63012?
Of the 10,314 people the ACS estimates in 63012, 20.5% are under 18 and 12.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (89.1%).
- Under 1820.5%
- 18 to 6467.5%
- 65 and older12.0%
- White, not Hispanic89.1%
- Other or two or more8.5%
- Hispanic or Latino2.2%
- Black, not Hispanic0.1%
- Asian, not Hispanic0.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 63012 earn?
Median household income is $96,099 (ACS 2020-2024), the 3rd highest of the 17 ranked ZIP codes in Jefferson County.
- Median household income
- $96,099
- Income per person
- $48,293
- Below the poverty line
- 5.7%
- Unemployed (of the labor force)
- 2.9%
- Adults 25+ with a bachelor's degree
- 26.2%
- Adjusted gross income per tax return, 2022
- $75,3865,180 returns; wages 77% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 63012?
FHFA's house price index for 63012, built from repeat sales and appraisals of the same homes, rose 86% from 2015 to 2025 and rose 51% from 2020 to 2025, and moved +1.9% in 2025.
- Median home value (owners' estimate)
- $250,800
- Median gross rent
- $1,441
- Homes owned by their occupants
- 92.0%
- Housing units
- 4,076
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 63012?
133 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction39
- Other services (except public administration)22
- Retail trade11
- Administrative and support and waste management and remediation services11
- Professional, scientific, and technical services9
- Transportation and warehousing8
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 63012?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 63052 | Imperial | 28,712 | $93k | 3.4 mi |
| 63070 | Pevely | 8,428 | $65k | 4.5 mi |
| 63051 | House Springs | 13,436 | $80k | 7.0 mi |
| 63050 | Hillsboro | 18,744 | $87k | 9.2 mi |
| 62295 | Valmeyer, IL | 1,459 | $88k | 9.3 mi |
| 63053 | Kimmswick | 56 | $61k | 5.0 mi (near) |
| 63010 | Arnold | 34,478 | $80k | 6.6 mi (near) |
| 63048 | Herculaneum | 4,228 | $92k | 6.9 mi (near) |
| 63019 | Crystal City | 4,489 | $73k | 9.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.