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/DELMAR

Delmar ZIP code, Iowa

The ZIP code for Delmar, IA is 52037, and its area code is 563.

USPS city name
1 ZIP code
Population
480
Area code
563
State
Iowa

Delmar in numbers

About 480 people live in Delmar, in 202 households. The median household income is $68,750 a year, 8% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $147,500 (29% below the Iowa median), and median gross rent is $944 a month. The median age is 38.6; 30.2% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 26 minutes.

Population480Delmar480
Households202Delmar202
Median age38.6Delmar38.6Iowa38.6US 38.9
Median household income$68,750Delmar$68,750Iowa$75,059US $80,734
Median home value$147,500Delmar$147,500Iowa$208,000US $332,700
Median gross rent$944Delmar$944Iowa$972US $1,413
Bachelor's degree or higher30.2%Delmar30.2%Iowa31.4%US 35.7%
Mean commute26.3 minDelmar26.3 minIowa19.8 minUS 26.4 min
Population density628 / sq miDelmar628 / sq mi

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

ZIP codes addressed as Delmar

ZIP codes with the USPS city name Delmar
ZIP City Type Population Median income Median home
52037 Delmar , IA Standard 1,172 $90,813 $198,400

Map of Delmar ZIP codes

52037

The ZIP codes of Delmar, 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 Delmar

The nearest larger towns are Maquoketa (6,075 people, 5.1 mi), Preston (1,044 people, 11 mi) and Grand Mound (510 people, 12 mi).

Towns near Delmar
TownPopulationDistance
Maquoketa 6,075 5.1 mi
DeWitt 5,546 12.6 mi
Clinton 24,322 21.7 mi
Camanche 4,550 22.2 mi
Fulton, IL 3,709 24.9 mi
Eldridge 6,818 24.9 mi
Savanna, IL 2,816 24.9 mi

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

Cite this page

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

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