Seneca, KS ZIP code
The ZIP code for Seneca, Kansas is 66538. It is in Nemaha County.
- Population in these ZIPs
- 3,602
- Avg. median income
- $79,000population-weighted
- Typical home value
- $265,900population-weighted
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Seneca, KS ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 66538 | 3,602 | $78,981 | $265,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Seneca
- Oneida 6 mi
- Baileyville 7 mi
- Bern 8 mi
- Sabetha 11 mi
- Centralia 12 mi
- Axtell 12 mi
- Corning 13 mi
- Goff 13 mi
- Vermillion 16 mi
- Fairview 17 mi
- Wetmore 18 mi
- Summerfield 18 mi
Frequently asked questions
What is the ZIP code for Seneca, KS?
The ZIP code for Seneca, KS is 66538.
What county is Seneca, Kansas in?
Seneca ZIP codes are in Nemaha County.