Residential delivery area · New York
ZIP Code 13421: Oneida, NY
ZIP code 13421 uses the postal name Oneida, New York and lies mostly in Madison County (76% of its land) with the rest in Oneida County (Census 2020 ZIP-county file). About 13,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $65,752 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Oneida (49%) and Oneida Castle (1%); 50% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Oneida · its only residential ZIP
- County
- Madison County (76%); Oneida County (24%)
- Census places
- Oneida (49%); Oneida Castle (1%)
- Metro area
- Syracuse, NY
- House districts
- NY-22 (97%), NY-21 (3%) 119th Congress, by share of land
- State
- New York
- Time zone
- Eastern
- Land area
- 40.1 sq mi · 318 people per sq mi
Where is ZIP code 13421?
13421 centers on 43.062°, -75.660° and covers 40.1 square miles of land plus 0.1 of water. It borders 9 ZIP codes: 13163, 13461, 13032, 13409, 13478, 13054, 13477, 13476, 13408.
The map draws ZIP code areas only. For the streets inside 13421, 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 13421 compare with the rest of Madison County?
| Measure | 13421 | In Madison County | In NY |
|---|---|---|---|
| People (ACS 2020-2024) | 12,771 | 3rd of 31 | 450th of 1,826 |
| Median household income | $66k | 13th of 19 | 851st of 1,081 |
| Median home value | $162k | 11th of 18 | 936th of 1,172 |
Its median household income is higher than in 40% of U.S. residential ZIP codes, and it is denser than 68% 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 13421?
The 2020 Census counted 12,807 people in 13421; the ACS, which samples households over 2020-2024, estimates 12,771. Between the 2010 and 2020 censuses its population fell 9.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 12,771
- 2020 Census count
- 12,807−9.3% since 2010 (14,125)
- Households
- 5,712
- Median age
- 46.1
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 13421?
Of the 12,771 people the ACS estimates in 13421, 19.2% are under 18 and 21.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.4%).
- Under 1819.2%
- 18 to 6459.0%
- 65 and older21.7%
- White, not Hispanic91.4%
- Other or two or more4.2%
- Hispanic or Latino2.9%
- Black, not Hispanic1.1%
- Asian, not Hispanic0.4%
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 13421 earn?
Median household income is $65,752 (ACS 2020-2024), the 13th highest of the 19 ranked ZIP codes in Madison County. It is not measurably different from 2015-2019 ($66,015 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $65,752
- Income per person
- $40,901
- Below the poverty line
- 12.6%
- Unemployed (of the labor force)
- 4.5%
- Adults 25+ with a bachelor's degree
- 26.5%
- Adjusted gross income per tax return, 2022
- $71,7276,240 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 13421?
FHFA's house price index for 13421, built from repeat sales and appraisals of the same homes, rose 81% from 2015 to 2025 and rose 55% from 2020 to 2025, and moved +5.3% in 2025.
- Median home value (owners' estimate)
- $162,000
- Median gross rent
- $904
- Homes owned by their occupants
- 66.2%
- Housing units
- 6,076
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 13421?
334 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance73
- Retail trade51
- Other services (except public administration)46
- Accommodation and food services39
- Construction24
- Finance and insurance15
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 13421?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 13163 | Wampsville | 286 | $78k | 2.6 mi |
| 13461 | Sherrill | 3,047 | $89k | 3.2 mi |
| 13032 | Canastota | 12,850 | $81k | 5.5 mi |
| 13409 | Munnsville | 2,144 | $72k | 6.9 mi |
| 13478 | Verona | 3,078 | $84k | 6.9 mi |
| 13054 | Durhamville | 1,334 | $94k | 7.4 mi |
| 13477 | Vernon Center | 1,498 | $71k | 7.6 mi |
| 13476 | Vernon | 2,572 | $63k | 7.8 mi |
| 13408 | Morrisville | 3,391 | $69k | 9.9 mi |
| 13134 | Peterboro | 113 | $72k | 6.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.