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US ZIP Code Profile

ZIP Code 35121
Oneonta, Alabama

ZIP code 35121 is in Oneonta, located in Blount County, Alabama, within the Birmingham-Hoover metro area. Its 2020 Census population was 16,016. The estimated median adjusted gross income per tax return is $43,944, and about 4% of filers report $200,000 or more.

2020 Population
16,016
Census ZCTA
County
Blount
FIPS 01009
Median income (est.)
$43,944
IRS SOI 2022
Land Area
144.128 mi²
+ 2.041 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityOneonta, AL
CountyBlount County (FIPS 01009)
StateAlabama (FIPS 01)
Metro Area (MSA)Birmingham-Hoover, AL Metro Area (13820)
Census Region / DivisionSouth Region · East South Central Division
Coordinates33.941177, -86.45509
Land / Water Area144.128 mi² land · 2.041 mi² water

02Income & Economics

Distribution of the 6,240 individual tax returns filed in 35121 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
30.4%
$25K–$50K
25.8%
$50K–$75K
15.7%
$75K–$100K
10.3%
$100K–$200K
13.9%
$200K+
3.9%
The $200,000+ bracket accounts for 27% of 35121's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($43,944) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 35121's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,944
▲ 6.1%
Filers earning $200K+
3.9%
▲ 0.6 pt
Total filers
6,240
▲ 0.5%
GET /zipc/v2/zipcodes/35121/soi?year=… $39K 2020 $41K 2021 $44K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 35121 ZCTA.

2000
14,201
 
2010
15,570
▲ +9.6%
2020
16,016
▲ +2.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number016150
City AliasesHighland Lake, Hoods Crossroads, Oneonta, Rosa, Straight Mountain

06Frequently Asked Questions

What county is ZIP code 35121 in?

ZIP code 35121 is in Blount County, Alabama (county FIPS code 01009).

What city is ZIP code 35121?

The primary USPS city for 35121 is Oneonta, AL.

What metro area (MSA) is 35121 in?

35121 is part of the Birmingham-Hoover, AL Metro Area (MSA code 13820).

What is the population of ZIP code 35121?

The 2020 Census population of 35121 was 16,016 residents.

What is the median income in ZIP code 35121?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 35121 is about $43,944, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.