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 — CITY/MI/DECATUR

Decatur ZIP code, Michigan

The ZIP code for Decatur, MI is 49045, and its area code is 269.

USPS city name
1 ZIP code
Population
1,835
Area code
269

Decatur in numbers

About 1,835 people live in Decatur, in 739 households. The median household income is $61,806 a year, 15% below the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $137,500 (41% below the Michigan median), and median gross rent is $785 a month. The median age is 33.3; 14.8% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 23 minutes.

Population1,835Decatur1,835
Households739Decatur739
Median age33.3Decatur33.3Michigan40.2US 38.9
Median household income$61,806Decatur$61,806Michigan$72,875US $80,734
Median home value$137,500Decatur$137,500Michigan$231,600US $332,700
Median gross rent$785Decatur$785Michigan$1,129US $1,413
Bachelor's degree or higher14.8%Decatur14.8%Michigan32.4%US 35.7%
Mean commute23.0 minDecatur23.0 minMichigan24.2 minUS 26.4 min
Population density1,358 / sq miDecatur1,358 / sq mi

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

ZIP codes addressed as Decatur

ZIP codes with the USPS city name Decatur
ZIP City Type Population Median income Median home
49045 Decatur , MI Standard 5,321 $57,436 $177,300

Map of Decatur ZIP codes

49045

The ZIP codes of Decatur, MI, 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.

Towns near Decatur

The nearest larger towns are Lawton (2,104 people, 7.8 mi), Paw Paw (3,289 people, 8.5 mi) and Dowagiac (5,732 people, 11 mi).

Towns near Decatur
TownPopulationDistance
Paw Paw 3,289 8.5 mi
Dowagiac 5,732 11.1 mi
Mattawan 2,692 11.8 mi
Paw Paw Lake 3,889 17.0 mi
Portage 49,259 20.6 mi
Three Rivers 7,943 21.0 mi
Westwood 8,867 22.3 mi
Vicksburg 3,934 22.4 mi
Benton Heights 3,078 22.6 mi
Kalamazoo 73,076 22.9 mi
Niles 11,803 23.5 mi
Benton Harbor 8,953 24.2 mi
Simonton Lake, IN 4,248 24.4 mi
Fair Plain 7,330 24.6 mi

More nearby: every ZIP code in Van Buren County · Michigan ZIP codes

Cite this page

zipcodes.pro. “Decatur, MI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mi/decatur

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