ZIP Codes of Alcona County, MI

Population & People
Population & People
Total Population
9,983
Household Income
Household Income
Median Income
$57,495
Housing
Housing
Total Housing Units
9,470
Business & Economy
Business & Economy
Total Businesses
178
Employment
Employment
Employment Rate
41.43%
Education
Education
Bachelor's Degree+
20.12%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 9 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:9 ZIP Codes (9 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:989
Timezone:Eastern (GMT -05:00)
Local Time:2:12:30 PM
Population:9,983 [See All]
FIPS:26001
Land Area:660 sq mi
Water Area:22 sq mi
Coordinates:44.6774, -83.5104
Quick Link:
https://www.zip-codes.com/county/mi-alcona.asp
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Among America's 25 oldest counties
Median age 58.5 — #20 nationwide.
Owner-dominated county
Just 11.6% of homes are rentals — strong homeownership culture.

Standout ZIPs in this County


Most Populous
Harrisville · 2,505 people
25.1% of county total
Highest Income
Spruce · $73,421 median
1.3× county average
Largest Land Area
Curran · 129.1 sq mi
Spans the most ground
Fastest Growth
Lincoln · 16.4% (10-yr)
1,551 → 1,805 residents
Most Educated
Lincoln · 26.7% bachelor's+
402 of 1,503 adults 25+

Things worth knowing about Alcona County


9,983 residents live across 9 ZIPs covering 660 sq mi, served by 9 distinct USPS-recognized cities.

Population moved from 10,168 to 9,983 from 2014 to 2024 — a -1.8% change. 5 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 48762 (Spruce, $73,421 median) and poorest ZIP 48737 (Glennie, $38,000) are 19.9 miles apart — a 1.9× income gap across local geography.

Median home values vary 2.1× across this county — from $108,800 in 48728 (Curran) to $226,700 in 48721 (Black River).

Density varies 32× across the county — from 3 people/sq mi in 48728 (Curran) to 82 in 48738 (Greenbush).

Educational attainment ranges from 9.7% bachelor's+ in 48737 (Glennie) to 26.7% in 48742 (Lincoln) — the breadth of educational profiles across the area.

Within Michigan, this is the #75 most populous of 83 counties and ranks #68 for median household income .

Weighted by population, the typical household earns about $57,557 across the county — reflecting what a typical resident sees, not a simple ZIP average.

20.1% of adults age 25+ hold a bachelor's degree or higher (1,644 of 8,171 reporting).

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

Stories about Alcona 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
660
square miles
Avg density
15.1
people per sq mi
Population
9,983
across 9 ZIPs
Curran
129.1 sq mi
328 residents
Glennie
124.2 sq mi
1,082 residents
Barton City
86.4 sq mi
521 residents

All ZIP Codes in Alcona County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
48740HarrisvilleStandard2,505$54,39367.55.1%
48742LincolnStandard1,805$66,47772.916.4%
48745MikadoStandard1,277$49,84486.1-7.1%
48738GreenbushStandard1,129$63,46213.8-14.4%
48737GlennieStandard1,082$38,000124.2-11.6%
48762SpruceStandard930$73,42152.2-22.7%
48705Barton CityStandard521$65,10486.413.3%
48721Black RiverStandard406$60,50027.718.7%
48728CurranStandard328$46,250129.15.5%

Adjacent & Nearby Counties