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/SD/MADISON

Madison ZIP code, South Dakota

The ZIP code for Madison, SD is 57042, and its area code is 605.

USPS city name
1 ZIP code
Population
6,094
Area code
605

Madison in numbers

About 6,094 people live in Madison, in 2,573 households, the 18th-largest of South Dakota's 439 census places. The median household income is $65,593 a year, 13% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $193,100 (25% below the South Dakota median), and median gross rent is $981 a month. The median age is 40.1; 34.3% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 11 minutes.

Population6,094Madison6,094
Households2,573Madison2,573
Median age40.1Madison40.1South Dakota38.0US 38.9
Median household income$65,593Madison$65,593South Dakota$75,081US $80,734
Median home value$193,100Madison$193,100South Dakota$257,400US $332,700
Median gross rent$981Madison$981South Dakota$946US $1,413
Bachelor's degree or higher34.3%Madison34.3%South Dakota31.9%US 35.7%
Mean commute11.4 minMadison11.4 minSouth Dakota17.8 minUS 26.4 min
Population density1,320 / sq miMadison1,320 / sq mi

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

ZIP codes addressed as Madison

ZIP codes with the USPS city name Madison
ZIP City Type Population Median income Median home
57042 Madison , SD Standard 7,756 $71,868 $228,200

Map of Madison ZIP codes

57042

The ZIP codes of Madison, SD, 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 Madison

The nearest larger towns are Brookings (23,948 people, 26 mi), Sioux Falls (201,469 people, 37 mi) and Brandon (10,996 people, 39 mi).

Towns near Madison
TownPopulationDistance
Dell Rapids 3,905 23.3 mi
Brookings 23,948 26.0 mi
Hartford 3,478 28.0 mi

More nearby: every ZIP code in Lake County · South Dakota ZIP codes

Cite this page

zipcodes.pro. “Madison, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/madison

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