ZIP Codes of Portage County, WI

Population & People
Population & People
Total Population
68,073
Household Income
Household Income
Median Income
$84,397
Housing
Housing
Total Housing Units
30,396
Business & Economy
Business & Economy
Total Businesses
1,673
Employment
Employment
Employment Rate
64.43%
Education
Education
Bachelor's Degree+
34.74%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 12 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:12 ZIP Codes (10 Standard, 1 PO Box, 1 Unique) [See All]
Area Codes:534 / 715
Timezone:Central (GMT -06:00)
Local Time:2:14:20 PM
Population:68,073 [See All]
FIPS:55097
CBSA:Stevens Point-Plover, WI
Land Area:754 sq mi
Water Area:19 sq mi
Coordinates:44.4917, -89.4585
Quick Link:
https://www.zip-codes.com/county/wi-portage.asp
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Wisconsin's #23 most populous county
68,073 residents across 12 ZIPs — #23 of 73 Wisconsin counties.

Standout ZIPs in this County


Most Populous
Stevens Point · 28,242 people
41.5% of county total
Highest Income
Custer · $113,690 median
1.3× county average
Largest Land Area
Junction City · 95.5 sq mi
Spans the most ground
Fastest Growth
Amherst · 20.7% (10-yr)
3,347 → 4,040 residents
Most Educated
Plover · 41.0% bachelor's+
4,244 of 10,352 adults 25+

Things worth knowing about Portage County


68,073 residents live across 12 ZIPs covering 754 sq mi, served by 10 distinct USPS-recognized cities.

Population moved from 67,921 to 68,073 from 2014 to 2024 — a +0.2% change. 6 ZIPs gained residents, 5 lost.

The county's wealthiest ZIP 54423 (Custer, $113,690 median) and poorest ZIP 54481 (Stevens Point, $59,545) are 10.2 miles apart — a 1.9× income gap across local geography.

Median home values vary 1.9× across this county — from $176,000 in 54921 (Bancroft) to $329,100 in 54423 (Custer).

Density varies 24× across the county — from 16 people/sq mi in 54921 (Bancroft) to 384 in 54481 (Stevens Point).

Educational attainment ranges from 19.3% bachelor's+ in 54921 (Bancroft) to 41.0% in 54467 (Plover) — the breadth of educational profiles across the area.

Within Wisconsin, this is the #23 most populous of 73 counties and ranks #16 for median household income .

Hosts 1 single-entity Unique ZIP: 54492Stevens Point .

Weighted by population, the typical household earns about $77,044 across the county — reflecting what a typical resident sees, not a simple ZIP average.

34.7% of adults age 25+ hold a bachelor's degree or higher (15,422 of 44,389 reporting).

10 Standard delivery, 1 PO Box only, 1 single-entity Unique ZIPs serve this county.

Stories about Portage 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
754
square miles
Avg density
90.3
people per sq mi
Population
68,073
across 12 ZIPs
Junction City
95.5 sq mi
2,145 residents
Stevens Point
94.3 sq mi
8,963 residents
Bancroft
93.6 sq mi
1,482 residents

All ZIP Codes in Portage County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
54481Stevens PointStandard28,242$59,54573.5-4.1%
54467PloverStandard14,870$87,58059.37.7%
54482Stevens PointStandard8,963$94,50094.30.0%
54406AmherstStandard4,040$77,53368.020.7%
54473RosholtStandard2,472$80,03886.41.0%
54423CusterStandard2,394$113,69048.27.5%
54443Junction CityStandard2,145$99,42395.5-9.7%
54909AlmondStandard1,982$80,41786.8-16.9%
54921BancroftStandard1,482$76,16493.613.7%
54407Amherst JunctionStandard1,350$101,56348.2-12.1%
54458NelsonvillePO Box133$57,9170.447.8%
54492Stevens PointUnique0.0

Adjacent & Nearby Counties