ZIP Codes of Custer County, NE

Population & People
Population & People
Total Population
10,507
Household Income
Household Income
Median Income
$71,758
Housing
Housing
Total Housing Units
5,327
Business & Economy
Business & Economy
Total Businesses
371
Employment
Employment
Employment Rate
62.39%
Education
Education
Bachelor's Degree+
23.95%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 11 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:11 ZIP Codes (11 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:308
Timezone:Central (GMT -06:00)
Local Time:11:54:23 PM
Population:10,507 [See All]
FIPS:31041
Land Area:2,632 sq mi
Water Area:1 sq mi
Coordinates:41.4034, -99.6451
Quick Link:
https://www.zip-codes.com/county/ne-custer.asp
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Nebraska's #25 most populous county
10,507 residents across 11 ZIPs — #25 of 107 Nebraska counties.

Standout ZIPs in this County


Most Populous
Broken Bow · 4,335 people
41.3% of county total
Highest Income
Oconto · $95,750 median
1.3× county average
Largest Land Area
Anselmo · 518.5 sq mi
Spans the most ground
Fastest Growth
Broken Bow · -7.7% (10-yr)
4,699 → 4,335 residents
Most Educated
Broken Bow · 22.4% bachelor's+
646 of 2,878 adults 25+

Things worth knowing about Custer County


10,507 residents live across 11 ZIPs covering 2,632 sq mi, served by 11 distinct USPS-recognized cities.

Population moved from 10,794 to 10,507 from 2014 to 2024 — a -2.7% change. 4 ZIPs gained residents, 7 lost.

The county's wealthiest ZIP 68860 (Oconto, $95,750 median) and poorest ZIP 68874 (Sargent, $60,139) are 36.2 miles apart — a 1.6× income gap across local geography.

Median home values vary 3.6× across this county — from $72,500 in 68860 (Oconto) to $262,800 in 68813 (Anselmo).

Density varies 11× across the county — from 1 people/sq mi in 68813 (Anselmo) to 11 in 68822 (Broken Bow).

Educational attainment ranges from 5.1% bachelor's+ in 68828 (Comstock) to 32.7% in 68825 (Callaway) — the breadth of educational profiles across the area.

Within Nebraska, this is the #25 most populous of 107 counties and ranks #54 for median household income .

Weighted by population, the typical household earns about $69,233 across the county — reflecting what a typical resident sees, not a simple ZIP average.

24.0% of adults age 25+ hold a bachelor's degree or higher (1,736 of 7,247 reporting).

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

Stories about Custer 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
2,632
square miles
Avg density
4.0
people per sq mi
Population
10,507
across 11 ZIPs
Anselmo
518.5 sq mi
518 residents
Broken Bow
388.0 sq mi
4,335 residents
Arnold
385.8 sq mi
1,208 residents

All ZIP Codes in Custer County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
68822Broken BowStandard4,335$67,500388.0-7.7%
69120ArnoldStandard1,208$69,886385.829.2%
68825CallawayStandard995$64,432323.8-12.8%
68814AnsleyStandard984$73,295211.50.5%
68874SargentStandard821$60,139252.9-8.6%
68856MernaStandard715$73,000113.237.5%
68813AnselmoStandard518$73,160518.5-7.8%
68855Mason CityStandard400$78,750170.5-13.2%
68860OcontoStandard301$95,750169.824.4%
68828ComstockStandard204$61,66776.7-25.5%
68881WestervilleStandard2621.3-68.7%

Adjacent & Nearby Counties