Residential delivery area · Kansas
ZIP Code 66538: Seneca, KS
ZIP code 66538 uses the postal name Seneca, Kansas and lies entirely in Nemaha County (Census 2020 ZIP-county file). About 3,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $78,981 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Seneca (1%), St. Benedict (1%) and Kelly (under 1%); 97% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Seneca · its only residential ZIP
- County
- Nemaha County
- Census places
- Seneca (1%); St. Benedict (1%) census-designated place; Kelly (under 1%) census-designated place
- House district
- KS-2 119th Congress
- State
- Kansas
- Time zone
- Central
- Land area
- 136.8 sq mi · 26 people per sq mi
Where is ZIP code 66538?
66538 centers on 39.851°, -96.045° and covers 136.8 square miles of land plus 0.0 of water. It borders 9 ZIP codes: 66522, 66404, 66408, 66534, 66415, 68345, 66417, 66428, 68420.
The map draws ZIP code areas only. For the streets inside 66538, 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 66538 compare with the rest of Nemaha County?
| Measure | 66538 | In Nemaha County | In KS |
|---|---|---|---|
| People (ACS 2020-2024) | 3,602 | 1st of 16 | 159th of 704 |
| Median household income | $79k | 1st of 3 | 97th of 286 |
| Median home value | $299k | 1st of 4 | 47th of 282 |
Its median household income is higher than in 61% of U.S. residential ZIP codes, and it is denser than 31% 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 66538?
The 2020 Census counted 3,342 people in 66538; the ACS, which samples households over 2020-2024, estimates 3,602. Between the 2010 and 2020 censuses its population grew 2.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,602
- 2020 Census count
- 3,342+2.4% since 2010 (3,264)
- Households
- 1,361
- Median age
- 41.3
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 66538?
Of the 3,602 people the ACS estimates in 66538, 27.8% are under 18 and 21.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.3%).
- Under 1827.8%
- 18 to 6450.3%
- 65 and older21.8%
- White, not Hispanic96.3%
- Hispanic or Latino2.0%
- Other or two or more1.6%
- Black, not Hispanic0.1%
- 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 66538 earn?
Median household income is $78,981 (ACS 2020-2024), the highest of the 3 ranked ZIP codes in Nemaha County. It is not measurably different from 2015-2019 ($76,947 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $78,981±$8,057
- Income per person
- $39,890
- Below the poverty line
- 8.2%
- Unemployed (of the labor force)
- 2.0%
- Adults 25+ with a bachelor's degree
- 32.9%
- Adjusted gross income per tax return, 2022
- $84,5501,640 returns; wages 58% 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 66538?
- Median home value (owners' estimate)
- $299,300
- Median gross rent
- $808
- Homes owned by their occupants
- 81.0%
- Housing units
- 1,509
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 66538?
176 business establishments had a location in this ZIP code in 2023, 4 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade22
- Construction21
- Health care and social assistance21
- Wholesale trade17
- Other services (except public administration)16
- Professional, scientific, and technical services13
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 66538?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 66522 | Oneida | 130 | $58k | 5.8 mi |
| 66404 | Baileyville | 481 | $90k | 6.9 mi |
| 66408 | Bern | 427 | $91k | 7.8 mi |
| 66534 | Sabetha | 3,381 | $73k | 11.2 mi |
| 66415 | Centralia | 762 | $70k | 12.2 mi |
| 68345 | Du Bois, NE | 245 | $68k | 12.9 mi |
| 66417 | Corning | 507 | $87k | 13.4 mi |
| 66428 | Goff | 246 | $101k | 13.5 mi |
| 68420 | Pawnee City, NE | 1,255 | $56k | 17.5 mi |
| 66403 | Axtell | 801 | $72k | 12.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.