US ZIP Code
66538

Seneca, KS

Nemaha County  ·  Kansas

● Active
👥 3,577 Population ↑ 3% since 2019
💰 $77,076 Median HH Income
≈ Avg ↑ 23% since 2019
🎂 41.0 Median Age
🏠 $252,900 Median Home Value
▼ 9% below avg ↑ 56% since 2019
🎓 41.9% College Grads
▲ 8% above avg
📊 1.3% Unemployment
▼ 74% below avg ↑ 237% since 2019
ZIP Code Details
ZIP Code66538
CitySeneca
StateKansas (KS)
CountyNemaha County
Area Code785
Elevation1,105 ft
Latitude39.850557
Longitude-96.044691
TimezoneChicago (DST)
FIPS20131
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 53.3% (1,906) Female 46.7% (1,671) ♀

Race & Ethnicity

White: 95.4%Hispanic: 3%Black: 0.1%Other: 0.7%Race
White95.4%
Hispanic3.0%
Black0.1%
Other0.7%

Age Breakdown

Under 5
5%
5–17
23%
18–24
6%
25–44
21%
45–64
24%
65+
8%

Key Indicators

Median Age41.0 yrs
Avg Household Size2.50
Below Poverty6.3% ▼ 37% below avg
College Grads41.9% ▲ 8% above avg
Unemployment1.3% ▼ 74% below avg
No HS Diploma9 (0.4%)
HS Graduate846 (38.5%)
Some College130 (5.9%)
Associates292 (13.3%)
Bachelors170 (7.7%)
Graduate Degree749 (34.1%)

Education

No HS: 0.4%HS Grad: 38.5%Some College: 5.9%Associates: 13.3%Bachelors: 7.7%Graduate: 34.1%Edu
No HS0.4%
HS Grad38.5%
Some College5.9%
Associates13.3%
Bachelors7.7%
Graduate34.1%
Housing & Income

Housing Tenure

Owner: 79.6%Renter: 20.4%Tenure
Owner79.6%
Renter20.4%

Home Value Distribution

Under $50k
7%
$50k–100k
7%
$100k–150k
9%
$150k–200k
9%
$200k–300k
28%
$300k–500k
28%
Over $500k
12%

Financials

Median HH Income$77,076 ≈ Avg ↑ 23% since 2019
Median Home Value$252,900 ▼ 9% below avg ↑ 56% since 2019
Home/Income Ratio3.3x (nat avg ~3.5x)
Median Rent$696/mo ↑ 12% since 2019
Total Units1,506
Vacant Units135
Avg HH Size2.50

Income Distribution

Under $25k
10%
$25k–50k
15%
$50k–75k
21%
$75k–100k
15%
$100k–150k
19%
$150k–200k
12%
Over $200k
9%
Employment & Commute

How People Get to Work

Drove Alone
94%
Public Transit
1%
Walked
3%
Work From Home
2%

Commute Time

Under 15 min
62%
15–30 min
24%
30–45 min
12%
Over 45 min
2%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
8%
1960s–1970s
19%
1980s–1990s
9%
2000+
63%

Summary

Total Units1,506
Vacant135
Owner Occupied79.6%
Renter Occupied20.4%
Avg HH Size2.50
Frequently Asked Questions
ZIP code 66538 is in Seneca, KS, in Nemaha County.
ZIP code 66538 is located in Kansas (KS).
ZIP code 66538 is in Nemaha County, KS.
ZIP 66538 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 66538 is 3,577 people (ACS 2023).
The median household income in ZIP code 66538 is $77,076 (ACS 2023).
The median home value in ZIP 66538 is $252,900 (ACS 2023).
About ZIP Code 66538

ZIP code 66538 is located in Seneca, Kansas, within Nemaha County. With a population of 3,577, this is a sparsely populated ZIP code with a middle-aged community — the median age is 41 years. Economically, 66538 is a middle-income ZIP code: the median household income of $77,076 is near the national average.

Real estate in ZIP code 66538 represents a mid-range housing market. The median home value of $252,900 is near the national average. Renters can expect to pay around $696 per month in median rent. Homeownership is strong here — 79.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 56% since 2019.

The population of 66538 is primarily White (95.39%). Residents are well-educated — 41.9% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 6.3%. Household income has grown by 23% since 2019.

The unemployment rate in 66538 stands at 1.3%, which is well below the national average. As in most parts of the country, driving alone is the dominant commute mode at 83%.

Overall, ZIP code 66538 in Seneca, KS is characterized as middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 3,577 residents, a median household income of $77,076, and a median home value of $252,900, it offers a clear picture of life in this part of Kansas.