Residential delivery area · Missouri
ZIP Code 63010: Arnold, MO
ZIP code 63010 is in Arnold, Missouri, entirely in Jefferson County (Census 2020 ZIP-county file). About 34,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $79,784 (Census Bureau, ACS 2020-2024). By Census place, 54% of its land lies in Arnold, and 3% in smaller places; 44% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Arnold · its only residential ZIP
- County
- Jefferson County
- Census places
- Arnold
- Metro area
- St. Louis, MO-IL
- House district
- MO-8 119th Congress
- State
- Missouri
- Time zone
- Central
- Land area
- 21.5 sq mi · 1,604 people per sq mi
Where is ZIP code 63010?
63010 centers on 38.430°, -90.392° and covers 21.5 square miles of land plus 0.6 of water. It borders 5 ZIP codes: 63052, 63128, 63129, 63026, 62295.
The map draws ZIP code areas only. For the streets inside 63010, 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 63010 compare with the rest of Jefferson County?
| Measure | 63010 | In Jefferson County | In MO |
|---|---|---|---|
| People (ACS 2020-2024) | 34,478 | 2nd of 25 | 37th of 1,035 |
| Median household income | $80k | 10th of 17 | 133rd of 479 |
| Median home value | $224k | 13th of 20 | 187th of 494 |
Its median household income is higher than in 62% of U.S. residential ZIP codes, and it is denser than 83% 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 63010?
The 2020 Census counted 35,027 people in 63010; the ACS, which samples households over 2020-2024, estimates 34,478. Between the 2010 and 2020 censuses its population fell 1.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 34,478
- 2020 Census count
- 35,027−1.2% since 2010 (35,439)
- Households
- 13,885
- Median age
- 40.3
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 63010?
Of the 34,478 people the ACS estimates in 63010, 20.4% are under 18 and 18.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (89.7%).
- Under 1820.4%
- 18 to 6461.5%
- 65 and older18.1%
- White, not Hispanic89.7%
- Other or two or more5.6%
- Hispanic or Latino2.4%
- Asian, not Hispanic1.7%
- Black, not Hispanic0.7%
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 63010 earn?
Median household income is $79,784 (ACS 2020-2024), the 10th highest of the 17 ranked ZIP codes in Jefferson County. It is not measurably different from 2015-2019 ($82,044 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $79,784
- Income per person
- $38,002
- Below the poverty line
- 6.9%
- Unemployed (of the labor force)
- 2.9%
- Adults 25+ with a bachelor's degree
- 23.9%
- Adjusted gross income per tax return, 2022
- $67,78317,820 returns; wages 75% 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 63010?
FHFA's house price index for 63010, built from repeat sales and appraisals of the same homes, rose 85% from 2015 to 2025 and rose 48% from 2020 to 2025, and moved +5.4% in 2025.
- Median home value (owners' estimate)
- $224,300
- Median gross rent
- $1,088
- Homes owned by their occupants
- 79.1%
- Housing units
- 14,886
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 63010?
851 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance122
- Construction107
- Retail trade106
- Accommodation and food services89
- Other services (except public administration)89
- Finance and insurance72
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 63010?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 63052 | Imperial | 28,712 | $93k | 3.4 mi |
| 63128 | Saint Louis | 30,540 | $92k | 4.3 mi |
| 63129 | Saint Louis | 51,553 | $95k | 4.4 mi |
| 63026 | Fenton | 45,354 | $98k | 6.2 mi |
| 62295 | Valmeyer, IL | 1,459 | $88k | 11.8 mi |
| 63053 | Kimmswick | 56 | $61k | 4.7 mi (near) |
| 63012 | Barnhart | 10,314 | $96k | 6.6 mi (near) |
| 63127 | Saint Louis | 5,268 | $123k | 7.3 mi (near) |
| 63049 | High Ridge | 16,592 | $92k | 8.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.