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/IA/COLFAX

Colfax ZIP code, Iowa

The ZIP code for Colfax, IA is 50054, and its area code is 515.

USPS city name
1 ZIP code
Population
2,210
Area code
515
State
Iowa

Colfax in numbers

About 2,210 people live in Colfax, in 846 households. The median household income is $79,318 a year, 6% above the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $178,000 (14% below the Iowa median), and median gross rent is $789 a month. The median age is 33.1; 22.2% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 20 minutes.

Population2,210Colfax2,210
Households846Colfax846
Median age33.1Colfax33.1Iowa38.6US 38.9
Median household income$79,318Colfax$79,318Iowa$75,059US $80,734
Median home value$178,000Colfax$178,000Iowa$208,000US $332,700
Median gross rent$789Colfax$789Iowa$972US $1,413
Bachelor's degree or higher22.2%Colfax22.2%Iowa31.4%US 35.7%
Mean commute19.8 minColfax19.8 minIowa19.8 minUS 26.4 min
Population density863 / sq miColfax863 / sq mi

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

ZIP codes addressed as Colfax

ZIP codes with the USPS city name Colfax
ZIP City Type Population Median income Median home
50054 Colfax , IA Standard 3,166 $89,940 $211,500

Map of Colfax ZIP codes

The ZIP codes of Colfax, IA, 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 Colfax

The nearest larger towns are Mitchellville (2,579 people, 6.7 mi), Newton (15,700 people, 10 mi) and Bondurant (8,560 people, 11 mi).

Towns near Colfax
TownPopulationDistance
Mitchellville 2,579 6.7 mi
Newton 15,700 10.2 mi
Bondurant 8,560 11.2 mi
Altoona 21,495 12.7 mi
Pleasant Hill 11,136 15.0 mi
Carlisle 4,255 17.7 mi
Ankeny 72,615 19.1 mi
Saylorville 3,366 20.2 mi
Des Moines 212,421 20.7 mi
Huxley 4,544 23.7 mi
Windsor Heights 5,143 25.1 mi
Pella 10,720 25.2 mi
Johnston 24,384 25.2 mi
Knoxville 7,473 25.9 mi

More nearby: every ZIP code in Jasper County · Iowa ZIP codes

Cite this page

zipcodes.pro. “Colfax, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/colfax

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