ZIP Codes of Billings County, ND

Population & People
Population & People
Total Population
509
Household Income
Household Income
Median Income
$85,561
Housing
Housing
Total Housing Units
291
Business & Economy
Business & Economy
Total Businesses
37
Employment
Employment
Employment Rate
63.82%
Education
Education
Bachelor's Degree+
26.18%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 2 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:2 ZIP Codes (2 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:701
Timezone:Mountain (GMT -07:00)
Local Time:2:13:01 PM
Population:509 [See All]
FIPS:38007
CBSA:Dickinson, ND
Land Area:671 sq mi
Water Area:3 sq mi
Coordinates:47.0871, -103.4197
Quick Link:
https://www.zip-codes.com/county/nd-billings.asp
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North Dakota's #60 most populous county
509 residents across 2 ZIPs — #60 of 64 North Dakota counties.

Standout ZIPs in this County


Most Populous
Medora · 320 people
62.9% of county total
Highest Income
Fairfield · $93,036 median
1.1× county average
Largest Land Area
Medora · 335.7 sq mi
Spans the most ground
Fastest Growth
— growth not calculable
Most Educated
— no education data

Things worth knowing about Billings County


509 residents live across 2 ZIPs covering 671 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 462 to 509 from 2014 to 2024 — a +10.2% change. 2 ZIPs gained residents, 0 lost.

The county's wealthiest ZIP 58627 (Fairfield, $93,036 median) and poorest ZIP 58645 (Medora, $78,086) are 19.0 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.3× across this county — from $258,300 in 58645 (Medora) to $345,800 in 58627 (Fairfield).

Density varies across the county — from 1 people/sq mi in 58627 (Fairfield) to 1 in 58645 (Medora).

Educational attainment ranges from 12.8% bachelor's+ in 58627 (Fairfield) to 32.7% in 58645 (Medora) — the breadth of educational profiles across the area.

Within North Dakota, this is the #60 most populous of 64 counties and ranks #17 for median household income with the #10 fastest decade growth .

Weighted by population, the typical household earns about $83,637 across the county — reflecting what a typical resident sees, not a simple ZIP average.

26.2% of adults age 25+ hold a bachelor's degree or higher (100 of 382 reporting).

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

Stories about Billings 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
671
square miles
Avg density
0.8
people per sq mi
Population
509
across 2 ZIPs
Medora
335.7 sq mi
320 residents
Fairfield
335.1 sq mi
189 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.

Medora

All ZIP Codes in Billings County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
58645MedoraStandard320$78,086335.716.4%
58627FairfieldStandard189$93,036335.11.1%

Adjacent & Nearby Counties