ZIP Codes of Otsego County, MI

Population & People
Population & People
Total Population
26,988
Household Income
Household Income
Median Income
$67,381
Housing
Housing
Total Housing Units
15,855
Business & Economy
Business & Economy
Total Businesses
859
Employment
Employment
Employment Rate
60.31%
Education
Education
Bachelor's Degree+
26.37%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:6 ZIP Codes (4 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:231 / 989
Timezone:Eastern (GMT -05:00)
Local Time:2:12:34 PM
Population:26,988 [See All]
FIPS:26137
Land Area:631 sq mi
Water Area:11 sq mi
Coordinates:45.0224, -84.6764
Quick Link:
https://www.zip-codes.com/county/mi-otsego.asp
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Michigan's #53 most populous county
26,988 residents across 6 ZIPs — #53 of 83 Michigan counties.

Standout ZIPs in this County


Most Populous
Gaylord · 20,773 people
77.0% of county total
Highest Income
Elmira · $79,679 median
1.2× county average
Largest Land Area
Gaylord · 253.0 sq mi
Spans the most ground
Fastest Growth
Johannesburg · 15.9% (10-yr)
1,864 → 2,161 residents
Most Educated
Gaylord · 28.3% bachelor's+
4,244 of 14,999 adults 25+

Things worth knowing about Otsego County


26,988 residents live across 6 ZIPs covering 631 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 25,535 to 26,988 from 2014 to 2024 — a +5.7% change. 3 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 49730 (Elmira, $79,679 median) and poorest ZIP 49795 (Vanderbilt, $57,019) are 13.3 miles apart — a 1.4× income gap across local geography.

Median home values vary 1.4× across this county — from $166,500 in 49795 (Vanderbilt) to $227,200 in 49735 (Gaylord).

Density varies across the county — from 14 people/sq mi in 49751 (Johannesburg) to 82 in 49735 (Gaylord).

Educational attainment ranges from 15.5% bachelor's+ in 49795 (Vanderbilt) to 28.3% in 49735 (Gaylord) — the breadth of educational profiles across the area.

Within Michigan, this is the #53 most populous of 83 counties and ranks #40 for median household income with the #12 fastest decade growth .

Weighted by population, the typical household earns about $69,863 across the county — reflecting what a typical resident sees, not a simple ZIP average.

26.4% of adults age 25+ hold a bachelor's degree or higher (5,159 of 19,563 reporting).

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

Stories about Otsego 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
631
square miles
Avg density
42.7
people per sq mi
Population
26,988
across 6 ZIPs
Gaylord
253.0 sq mi
20,773 residents
Johannesburg
158.8 sq mi
2,161 residents
Vanderbilt
123.6 sq mi
1,884 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.

Gaylord

All ZIP Codes in Otsego County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
49735GaylordStandard20,773$70,819253.06.0%
49730ElmiraStandard2,170$79,67995.98.5%
49751JohannesburgStandard2,161$62,008158.815.9%
49795VanderbiltStandard1,884$57,019123.6-9.0%
49797WatersPO Box0.0
49734GaylordPO Box0.0

Adjacent & Nearby Counties