Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/MI/COUNTY/INGHAM

Ingham County, MI ZIP codes

There are 34 ZIP codes in Ingham County, MI, in 12 towns, from 48805 to 49285. The largest are 48911 (Lansing), 48823 (East Lansing) and 48910 (Lansing).

The county seat is Mason.

ZIP codes
34
Towns
12
County seat
Mason
County FIPS
26065
Population
283,913
Median household income
$65,526
Land area
556 sq mi
Area code
517

Ingham County ZIP codes by town

Mason (county seat)
48854

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Ingham County ZIP codes

48805488194882348824488254882648840488424885448864488924889548901489094891048911489124891348915489164891848919489224892448929489304893348937489514895648980492514926449285

The ZIP codes of Ingham County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Ingham County in numbers

About 283,913 people live in Ingham County, in 117,096 households, the 8th most populous of Michigan's 83 counties. The median household income is $65,526 a year, 10% below the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $198,800 (14% below the Michigan median), and median gross rent is $1,084 a month. The median age is 33.3; 41.2% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 21 minutes.

Population283,913Ingham283,913
Households117,096Ingham117,096
Median age33.3Ingham33.3Michigan40.2US 38.9
Median household income$65,526Ingham$65,526Michigan$72,875US $80,734
Median home value$198,800Ingham$198,800Michigan$231,600US $332,700
Median gross rent$1,084Ingham$1,084Michigan$1,129US $1,413
Bachelor's degree or higher41.2%Ingham41.2%Michigan32.4%US 35.7%
Mean commute20.5 minIngham20.5 minMichigan24.2 minUS 26.4 min
Population density511 / sq miIngham511 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Ingham County

Largest towns in Ingham County
TownZIP codesPopulation
Lansing 19 113,023
East Lansing 4 45,758
Okemos 2 26,396
Holt 1 25,316
Haslett 1 18,559
Mason 1 8,249
Williamston 1 3,807
Leslie 1 2,129
Onondaga 1 1,454
Stockbridge 1 1,383
Webberville 1 1,375
Dansville 1 599

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Ingham County.

Not sure you are in Ingham County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Ingham County, with figures

ZIP codes in Ingham County
ZIP City Type Population Median income Median home
48805 Okemos , MI No street area — — —
48819 Dansville , MI Standard 2,550 $110,833 $254,500
48823 East Lansing , MI Standard 50,034 $52,018 $282,600
48824 East Lansing , MI Standard 2,097 — —
48825 East Lansing , MI Standard 11,295 — —
48826 East Lansing , MI No street area — — —
48840 Haslett , MI Standard 12,386 $73,408 $280,900
48842 Holt , MI Standard 21,945 $88,340 $225,900
48854 Mason , MI Standard 19,529 $94,716 $248,600
48864 Okemos , MI Standard 23,901 $121,103 $378,700
48892 Webberville , MI Standard 4,715 $89,125 $210,900
48895 Williamston , MI Standard 11,116 $93,418 $294,600
48901 Lansing , MI No street area — — —
48909 Lansing , MI No street area — — —
48910 Lansing , MI Standard 32,800 $54,712 $129,000
48911 Lansing , MI Standard 39,876 $56,631 $146,600
48912 Lansing , MI Standard 17,674 $54,429 $150,200
48913 Lansing , MI No street area — — —
48915 Lansing , MI Standard 9,428 $54,465 $122,900
48916 Lansing , MI No street area — — —
48918 Lansing , MI No street area — — —
48919 Lansing , MI No street area — — —
48922 Lansing , MI No street area — — —
48924 Lansing , MI No street area — — —
48929 Lansing , MI No street area — — —
48930 Lansing , MI No street area — — —
48933 Lansing , MI Standard 3,107 $33,589 $112,900
48937 Lansing , MI No street area — — —
48951 Lansing , MI No street area — — —
48956 Lansing , MI No street area — — —
48980 Lansing , MI No street area — — —
49251 Leslie , MI Standard 5,958 $85,253 $206,300
49264 Onondaga , MI Standard 1,454 $92,188 $235,700
49285 Stockbridge , MI Standard 6,240 $73,375 $210,100

Cite this page

zipcodes.pro. “Ingham County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mi/county/ingham

Underlying data is public domain or openly licensed — sources, vintages and licences.