ZIP Codes of Iosco County, MI

Population & People
Population & People
Total Population
25,671
Household Income
Household Income
Median Income
$52,762
Housing
Housing
Total Housing Units
20,598
Business & Economy
Business & Economy
Total Businesses
624
Employment
Employment
Employment Rate
44.63%
Education
Education
Bachelor's Degree+
19.80%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 8 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:989
Timezone:Eastern (GMT -05:00)
Local Time:2:12:32 PM
Population:25,671 [See All]
FIPS:26069
Land Area:508 sq mi
Water Area:29 sq mi
Coordinates:44.3342, -83.6501
Quick Link:
https://www.zip-codes.com/county/mi-iosco.asp
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Wide geographic spread
ZIPs range from 121.0 sq mi down to 2.30 — a 53× sprawl ratio.

Standout ZIPs in this County


Most Populous
Oscoda · 9,165 people
35.7% of county total
Highest Income
Tawas City · $59,677 median
1.1× county average
Largest Land Area
Oscoda · 121.0 sq mi
Spans the most ground
Fastest Growth
Oscoda · 7.0% (10-yr)
8,569 → 9,165 residents
Most Educated
East Tawas · 25.9% bachelor's+
954 of 3,680 adults 25+

Things worth knowing about Iosco County


25,671 residents live across 8 ZIPs covering 508 sq mi, served by 7 distinct USPS-recognized cities.

Population moved from 26,164 to 25,671 from 2014 to 2024 — a -1.9% change. 3 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 48763 (Tawas City, $59,677 median) and poorest ZIP 48750 (Oscoda, $45,561) are 15.7 miles apart — a 1.3× income gap across local geography.

Median home values vary 1.7× across this county — from $105,500 in 48770 (Whittemore) to $179,400 in 48739 (Hale).

Density varies across the county — from 28 people/sq mi in 48770 (Whittemore) to 76 in 48750 (Oscoda).

Educational attainment ranges from 9.5% bachelor's+ in 48770 (Whittemore) to 25.9% in 48730 (East Tawas) — the breadth of educational profiles across the area.

Within Michigan, this is the #58 most populous of 83 counties and ranks #76 for median household income .

Weighted by population, the typical household earns about $51,143 across the county — reflecting what a typical resident sees, not a simple ZIP average.

19.8% of adults age 25+ hold a bachelor's degree or higher (3,936 of 19,879 reporting).

7 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Iosco 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
508
square miles
Avg density
50.6
people per sq mi
Population
25,671
across 8 ZIPs
Oscoda
121.0 sq mi
9,165 residents
Hale
112.6 sq mi
3,629 residents
East Tawas
87.6 sq mi
4,584 residents

All ZIP Codes in Iosco County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
48750OscodaStandard9,165$45,561121.07.0%
48763Tawas CityStandard4,883$59,67785.3-3.8%
48730East TawasStandard4,584$49,82387.63.4%
48739HaleStandard3,629$52,802112.6-11.3%
48770WhittemoreStandard1,843$49,95765.7-13.0%
48748National CityStandard1,537$58,75033.2-16.8%
48743Long LakeStandard302.33.4%
48764Tawas CityPO Box0.0

Adjacent & Nearby Counties