ZIP Codes of Thomas County, NE

Population & People
Population & People
Total Population
709
Household Income
Household Income
Median Income
$47,756
Housing
Housing
Total Housing Units
449
Business & Economy
Business & Economy
Total Businesses
23
Employment
Employment
Employment Rate
64.76%
Education
Education
Bachelor's Degree+
32.16%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (3 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:308
Timezone:Central (GMT -06:00)
Local Time:2:13:08 PM
Population:709 [See All]
FIPS:31171
Land Area:1,042 sq mi
Water Area:3 sq mi
Coordinates:42.0668, -100.5123
Quick Link:
https://www.zip-codes.com/county/ne-thomas.asp
Need Thomas data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Notable population decline
Lost 20.7% of residents since 2014.

Standout ZIPs in this County


Most Populous
Thedford · 603 people
85.0% of county total
Highest Income
Thedford · $58,929 median
1.2× county average
Largest Land Area
Thedford · 801.1 sq mi
Spans the most ground
Fastest Growth
— growth not calculable
Most Educated
— no education data

Things worth knowing about Thomas County


709 residents live across 3 ZIPs covering 1,042 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 894 to 709 from 2014 to 2024 — a -20.7% change. 0 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 69166 (Thedford, $58,929 median) and poorest ZIP 69161 (Seneca, $36,583) are 15.7 miles apart — a 1.6× income gap across local geography.

Median home values vary 3.8× across this county — from $117,000 in 69166 (Thedford) to $450,000 in 69142 (Halsey).

Density varies across the county — from 0 people/sq mi in 69161 (Seneca) to 1 in 69166 (Thedford).

Within Nebraska, this is the #92 most populous of 107 counties and ranks #104 for median household income .

Weighted by population, the typical household earns about $57,124 across the county — reflecting what a typical resident sees, not a simple ZIP average.

32.2% of adults age 25+ hold a bachelor's degree or higher (183 of 569 reporting).

3 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Thomas County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
1,042
square miles
Avg density
0.7
people per sq mi
Population
709
across 3 ZIPs
Thedford
801.1 sq mi
603 residents
Seneca
130.8 sq mi
53 residents
Halsey
109.8 sq mi
53 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Thedford

Population decline

Thomas County lost 20.7% of residents between 2014 and 2024. ZIPs that shed the largest share:

Thedford
-11.3%
680 → 603 residents

All ZIP Codes in Thomas County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
69166ThedfordStandard603$58,929801.1-11.3%
69161SenecaStandard53$36,583130.8-47.5%
69142HalseyStandard53109.8-53.1%

Adjacent & Nearby Counties