Residential delivery area · Missouri
ZIP Code 65231: Auxvasse, MO
ZIP code 65231 uses the postal name Auxvasse, Missouri and lies mostly in Callaway County (98% of its land) with the rest in Audrain County (Census 2020 ZIP-county file). About 3,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $57,407 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Auxvasse; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Auxvasse · its only residential ZIP
- County
- Callaway County (98%); Audrain County (3%)
- Census places
- Auxvasse
- Metro area
- Jefferson City, MO
- House districts
- MO-3 (97%), MO-6 (3%) 119th Congress, by share of land
- State
- Missouri
- Time zone
- Central
- Land area
- 124.2 sq mi · 25 people per sq mi
Where is ZIP code 65231?
65231 centers on 39.018°, -91.908° and covers 124.2 square miles of land plus 0.8 of water. It borders 8 ZIP codes: 65262, 63388, 65264, 65265, 65285, 65240, 63361, 65202.
The map draws ZIP code areas only. For the streets inside 65231, 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 65231 compare with the rest of Callaway County?
| Measure | 65231 | In Callaway County | In MO |
|---|---|---|---|
| People (ACS 2020-2024) | 3,132 | 9th of 19 | 365th of 1,035 |
| Median household income | $57k | not ranked | not ranked |
| Median home value | $147k | 11th of 11 | 392nd of 494 |
65231's median household income is not ranked: its 90% margin of error (±$17,219) is more than a quarter of the figure ($57,407). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 30% of 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 65231?
The 2020 Census counted 3,171 people in 65231; the ACS, which samples households over 2020-2024, estimates 3,132. Between the 2010 and 2020 censuses its population fell 4.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,132±648 (90% margin)
- 2020 Census count
- 3,171−4.9% since 2010 (3,334)
- Households
- 1,198
- Median age
- 39.7
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 65231?
Of the 3,132 people the ACS estimates in 65231, 30.7% are under 18 and 13.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.1%).
- Under 1830.7%
- 18 to 6455.5%
- 65 and older13.8%
- White, not Hispanic91.1%
- Other or two or more4.7%
- Hispanic or Latino2.7%
- Black, not Hispanic1.5%
- Asian, not Hispanic0.0%
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 65231 earn?
Median household income is $57,407 (ACS 2020-2024). It is not measurably different from 2015-2019 ($66,833 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $57,407±$17,219
- Income per person
- $30,090
- Below the poverty line
- 22.6%
- Unemployed (of the labor force)
- 5.3%
- Adults 25+ with a bachelor's degree
- 24.8%
- Adjusted gross income per tax return, 2022
- $68,0181,430 returns; wages 72% 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 65231?
FHFA's house price index for 65231, built from repeat sales and appraisals of the same homes, rose 68% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved −6.4% in 2025.
The Census survey's median home value moved the other way, from $200,800 (2015-2019) to $146,600 (2020-2024), a change larger than its margins: the two measures disagree here. FHFA builds its ZIP index from repeat sales and calls it developmental; the survey asks owners what their home is worth.
- Median home value (owners' estimate)
- $146,600
- Median gross rent
- $670
- Homes owned by their occupants
- 81.6%
- Housing units
- 1,328
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 65231?
52 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).
- Construction12
- Finance and insurance6
- Manufacturing5
- Retail trade5
- Professional, scientific, and technical services5
- Health care and social assistance5
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 65231?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 65262 | Kingdom City | 729 | $73k | 4.7 mi |
| 63388 | Williamsburg | 685 | $72k | 12.8 mi |
| 65264 | Martinsburg | 919 | $46k | 12.9 mi |
| 65265 | Mexico | 15,153 | $57k | 12.9 mi |
| 65285 | Thompson | 523 | $99k | 18.2 mi |
| 65240 | Centralia | 8,830 | $72k | 18.4 mi |
| 63361 | Montgomery City | 4,460 | $62k | 19.2 mi |
| 65202 | Columbia | 47,327 | $72k | 20.9 mi |
| 65251 | Fulton | 22,579 | $63k | 12.2 mi (near) |
| 65232 | Benton City | 256 | $84k | 12.8 mi (near) |
| 65280 | Rush Hill | 121 | $93k | 17.0 mi (near) |
| 65255 | Hallsville | 5,216 | $84k | 17.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.