ZIP code 66538
Where is ZIP code 66538?
Seneca, Kansas
Nemaha County · Standard ZIP code
ZIP code 66538 belongs to Seneca, Kansas in Nemaha County. 66538 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 402, 531 and 785. About 3,602 people live in the 66538 area, where the median household income is $78,981. The closest ZIP codes are 66522 (Oneida, 5 mi east), 66404 (Baileyville, 8.2 mi west) and 66408 (Bern, 8.5 mi northeast).
| ZIP code | 66538 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Seneca |
| Also accepted | Kelly, St Benedict |
| State | Kansas (KS) |
| County | Nemaha County |
| Time zone | Central Time · now |
| Area codes | 402, 531, 785 |
| Coordinates | 39.8473, -96.0316 map |
| 3-digit prefix | 665 |
Population and income in 66538
| Population | 3,602 · higher than 77% of Kansas ZIP codes |
|---|---|
| People per square mile | 26 · higher than 67% of Kansas ZIP codes |
| Median age | 41.3 years · lower than 52% of Kansas ZIP codes |
| Men / women | 53% / 47% |
| Median household income | $78,981 · higher than 72% of Kansas ZIP codes |
| Income per person | $39,890 |
| Below the poverty line | 8.2% |
| Bachelor’s degree or higher | 33% of adults 25+ |
| Median home value | $299,300 · higher than 91% of Kansas ZIP codes |
| Median rent | $808 a month |
| Housing units | 1,509 |
| Households | 1,361 (2.54 people on average) |
| Owners / renters | 81% / 19% |
| Land area | 136.79 sq mi (plus 0.03 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 66538. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 66538
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 66522 | Oneida, KS | 5 mi E | Standard |
| 66404 | Baileyville, KS | 8.2 mi W | Standard |
| 66408 | Bern, KS | 8.5 mi NE | Standard |
| 66415 | Centralia, KS | 9.8 mi SW | Standard |
| 66534 | Sabetha, KS | 12.2 mi E | Standard |
| 66403 | Axtell, KS | 12.6 mi W | Standard |
| 66417 | Corning, KS | 13.1 mi S | Standard |
| 66428 | Goff, KS | 13.2 mi S | Standard |
| 68345 | Du Bois, NE | 13.2 mi N | Standard |
| 66544 | Vermillion, KS | 16.8 mi SW | Standard |
| 66425 | Fairview, KS | 17 mi E | Standard |
| 66550 | Wetmore, KS | 18 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 66538 or measure the distance to another ZIP code.
How to address mail to 66538
123 MAIN ST
SENECA KS 66538
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts KELLY and ST BENEDICT as the city name for 66538. Adding the 4-digit ZIP+4 code (66538-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 66538?
- 66538 is a Seneca, Kansas ZIP code. Kelly and St Benedict are also accepted as the city name.
- What county is 66538 in?
- ZIP code 66538 is in Nemaha County, Kansas.
- What time zone is ZIP code 66538 in?
- 66538 is in the Central Time zone (America/Chicago).
- What area code is 66538?
- Phone numbers in ZIP code 66538 use area codes 402, 531 and 785.
- What is the population of ZIP code 66538?
- About 3,602 people live in ZIP code 66538, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 66538?
- The median household income in 66538 is $78,981 a year, higher than 72% of Kansas ZIP codes.
- What ZIP codes are near 66538?
- The nearest ZIP codes to 66538 are 66522 (Oneida, 5 miles), 66404 (Baileyville, 8.2 miles), 66408 (Bern, 8.5 miles) and 66415 (Centralia, 9.8 miles).