Residential delivery area · Alabama
ZIP Code 35121: Oneonta, AL
ZIP code 35121 uses the postal name Oneonta, Alabama and lies mostly in Blount County (97% of its land) with the rest in St. Clair County (Census 2020 ZIP-county file). About 16,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $60,177 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Oneonta (11%), Rosa (3%), Highland Lake (1%) and Allgood (under 1%), and 1% in smaller places; 83% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Oneonta · its only residential ZIP
- County
- Blount County (97%); St. Clair County (2%)
- Census places
- Oneonta (11%); Rosa (3%); Highland Lake (1%); Allgood (under 1%)
- Metro area
- Birmingham, AL
- House districts
- AL-4 (97%), AL-3 (3%) 119th Congress, by share of land
- State
- Alabama
- Time zone
- Central
- Land area
- 144.5 sq mi · 112 people per sq mi
Where is ZIP code 35121?
35121 centers on 33.941°, -86.451° and covers 144.5 square miles of land plus 2.0 of water. It borders 8 ZIP codes: 35013, 35049, 35146, 35952, 35133, 35987, 35031, 35972.
The map draws ZIP code areas only. For the streets inside 35121, 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 35121 compare with the rest of Blount County?
| Measure | 35121 | In Blount County | In AL |
|---|---|---|---|
| People (ACS 2020-2024) | 16,170 | 5th of 17 | 104th of 656 |
| Median household income | $60k | 9th of 14 | 187th of 370 |
| Median home value | $180k | 8th of 15 | 181st of 386 |
Its median household income is higher than in 29% of U.S. residential ZIP codes, and it is denser than 55% 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 35121?
The 2020 Census counted 16,016 people in 35121; the ACS, which samples households over 2020-2024, estimates 16,170. Between the 2010 and 2020 censuses its population grew 2.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 16,170
- 2020 Census count
- 16,016+2.9% since 2010 (15,570)
- Households
- 6,002
- Median age
- 43.5
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 35121?
Of the 16,170 people the ACS estimates in 35121, 22.7% are under 18 and 22.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (80.6%), then Hispanic or Latino (14.1%).
- Under 1822.7%
- 18 to 6455.2%
- 65 and older22.0%
- White, not Hispanic80.6%
- Hispanic or Latino14.1%
- Other or two or more4.1%
- Black, not Hispanic1.2%
- 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 35121 earn?
Median household income is $60,177 (ACS 2020-2024), the 9th highest of the 14 ranked ZIP codes in Blount County. It is not measurably different from 2015-2019 ($54,365 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $60,177±$6,319
- Income per person
- $31,104
- Below the poverty line
- 16.1%
- Unemployed (of the labor force)
- 4.6%
- Adults 25+ with a bachelor's degree
- 20.0%
- Adjusted gross income per tax return, 2022
- $69,6726,240 returns; wages 65% 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 35121?
FHFA's house price index for 35121, built from repeat sales and appraisals of the same homes, rose 68% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved −0.5% in 2025.
- Median home value (owners' estimate)
- $179,900
- Median gross rent
- $711
- Homes owned by their occupants
- 74.2%
- Housing units
- 6,681
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 35121?
327 business establishments had a location in this ZIP code in 2023, 3 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade63
- Health care and social assistance40
- Accommodation and food services36
- Construction34
- Other services (except public administration)33
- Finance and insurance29
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 35121?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 35013 | Allgood | 141 | $123k | 4.7 mi |
| 35049 | Cleveland | 4,021 | $66k | 9.4 mi |
| 35146 | Springville | 13,973 | $87k | 10.1 mi |
| 35952 | Altoona | 8,415 | $48k | 11.1 mi |
| 35133 | Remlap | 3,150 | $50k | 11.4 mi |
| 35987 | Steele | 2,861 | $79k | 12.1 mi |
| 35031 | Blountsville | 7,973 | $54k | 12.4 mi |
| 35972 | Gallant | 1,291 | $43k | 13.4 mi |
| 35097 | Locust Fork | 1,859 | $58k | 10.7 mi (near) |
| 35990 | Walnut Grove | 70 | – | 12.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.