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/DAYTON

Dayton ZIP code, Iowa

The ZIP code for Dayton, IA is 50530, and its area code is 515.

USPS city name
1 ZIP code
Population
689
Area code
515
State
Iowa

Dayton in numbers

About 689 people live in Dayton, in 324 households. The median household income is $57,500 a year, 23% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $114,800 (45% below the Iowa median), and median gross rent is $523 a month. The median age is 47.6; 20.5% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 27 minutes.

Population689Dayton689
Households324Dayton324
Median age47.6Dayton47.6Iowa38.6US 38.9
Median household income$57,500Dayton$57,500Iowa$75,059US $80,734
Median home value$114,800Dayton$114,800Iowa$208,000US $332,700
Median gross rent$523Dayton$523Iowa$972US $1,413
Bachelor's degree or higher20.5%Dayton20.5%Iowa31.4%US 35.7%
Mean commute26.8 minDayton26.8 minIowa19.8 minUS 26.4 min
Population density809 / sq miDayton809 / sq mi

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

ZIP codes addressed as Dayton

ZIP codes with the USPS city name Dayton
ZIP City Type Population Median income Median home
50530 Dayton , IA Standard 1,090 $73,250 $167,900

Map of Dayton ZIP codes

50530

The ZIP codes of Dayton, 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 Dayton

The nearest larger towns are Stratford (735 people, 7.4 mi), Gowrie (932 people, 11 mi) and Ogden (1,859 people, 16 mi).

Towns near Dayton
TownPopulationDistance
Boone 12,424 17.9 mi
Fort Dodge 24,827 17.9 mi
Webster City 7,769 18.9 mi
Jefferson 4,152 23.1 mi
Story City 3,398 25.3 mi
Ames 67,669 28.2 mi
Eagle Grove 3,593 29.2 mi
Perry 7,985 29.3 mi
Madrid 2,808 29.6 mi

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

Cite this page

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

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