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/MASON

Mason County, MI ZIP codes

Mason County, MI has 6 ZIP codes, in 6 towns: 49431, 49454, 49410, 49411, 49405 and 49458. 2 more cross into it from neighbouring counties: 49660 and 49402.

The county seat is Ludington.

ZIP codes
6
Partly in it
2 more
Towns
6
County seat
Ludington
County FIPS
26105
Population
29,207
Median household income
$64,748
Land area
495 sq mi
Metro area
Ludington

Mason County ZIP codes by town

Ludington (county seat)
49431

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.

ZIP codes partly in Mason County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Mason County.

Map of Mason County ZIP codes

494054941049411494314945449458

The ZIP codes of Mason 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.

Mason County in numbers

About 29,207 people live in Mason County, in 12,801 households, the 49th most populous of Michigan's 83 counties. The median household income is $64,748 a year, 11% below the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $219,600 (5% below the Michigan median), and median gross rent is $896 a month. The median age is 47.3; 26.6% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 20 minutes.

Population29,207Mason29,207
Households12,801Mason12,801
Median age47.3Mason47.3Michigan40.2US 38.9
Median household income$64,748Mason$64,748Michigan$72,875US $80,734
Median home value$219,600Mason$219,600Michigan$231,600US $332,700
Median gross rent$896Mason$896Michigan$1,129US $1,413
Bachelor's degree or higher26.6%Mason26.6%Michigan32.4%US 35.7%
Mean commute19.5 minMason19.5 minMichigan24.2 minUS 26.4 min
Population density59 / sq miMason59 / 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 Mason County

Largest towns in Mason County
TownZIP codesPopulation
Ludington 1 7,676
Scottville 1 1,474
Custer 1 275
Fountain 1 204
Walhalla 1 169
Free Soil 1 112

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 Mason County.

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

Every ZIP code in Mason County, with figures

ZIP codes in Mason County
ZIP City Type Population Median income Median home
49405 Custer , MI Standard 1,635 $70,139 $170,200
49410 Fountain , MI Standard 1,734 $61,515 $172,600
49411 Free Soil , MI Standard 1,698 $61,857 $239,400
49431 Ludington , MI Standard 17,184 $66,336 $237,700
49454 Scottville , MI Standard 4,873 $61,280 $194,300
49458 Walhalla , MI Standard 169 $113,077 $57,800

Cite this page

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

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