ZIP Codes of Pierce County, ND

Population & People
Population & People
Total Population
3,643
Household Income
Household Income
Median Income
$59,639
Housing
Housing
Total Housing Units
1,893
Business & Economy
Business & Economy
Total Businesses
150
Employment
Employment
Employment Rate
60.38%
Education
Education
Bachelor's Degree+
30.83%
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:701
Timezone:Central (GMT -06:00)
Local Time:2:13:02 PM
Population:3,643 [See All]
FIPS:38069
Land Area:840 sq mi
Water Area:53 sq mi
Coordinates:48.2966, -99.9157
Quick Link:
https://www.zip-codes.com/county/nd-pierce.asp
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Notable population decline
Lost 12.9% of residents since 2014.

Standout ZIPs in this County


Most Populous
Rugby · 3,415 people
93.7% of county total
Highest Income
Wolford · $87,250 median
1.5× county average
Largest Land Area
Rugby · 742.7 sq mi
Spans the most ground
Fastest Growth
Rugby · -12.7% (10-yr)
3,912 → 3,415 residents
Most Educated
Rugby · 32.1% bachelor's+
761 of 2,371 adults 25+

Things worth knowing about Pierce County


3,643 residents live across 3 ZIPs covering 840 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 4,182 to 3,595 from 2014 to 2024 — a -14.0% change. 0 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 58385 (Wolford, $87,250 median) and poorest ZIP 58368 (Rugby, $58,854) are 22.1 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.0× across this county — from $152,500 in 58385 (Wolford) to $153,200 in 58368 (Rugby).

Density varies across the county — from 2 people/sq mi in 58385 (Wolford) to 5 in 58368 (Rugby).

Educational attainment ranges from 15.6% bachelor's+ in 58385 (Wolford) to 32.1% in 58368 (Rugby) — the breadth of educational profiles across the area.

Within North Dakota, this is the #27 most populous of 64 counties and ranks #59 for median household income .

Weighted by population, the typical household earns about $59,914 across the county — reflecting what a typical resident sees, not a simple ZIP average.

30.8% of adults age 25+ hold a bachelor's degree or higher (784 of 2,543 reporting).

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

Stories about Pierce 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
840
square miles
Avg density
4.3
people per sq mi
Population
3,643
across 3 ZIPs
Rugby
742.7 sq mi
3,415 residents
Wolford
96.3 sq mi
180 residents
Balta
1.1 sq mi
48 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.

Rugby

Population decline

Pierce County lost 12.9% of residents between 2014 and 2024. ZIPs that shed the largest share:

Rugby
-12.7%
3,912 → 3,415 residents

All ZIP Codes in Pierce County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
58368RugbyStandard3,415$58,854742.7-12.7%
58385WolfordStandard180$87,25096.3-33.3%
58313BaltaStandard48$32,8131.1

Adjacent & Nearby Counties