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/TX/HARPER

Harper ZIP code, Texas

The ZIP code for Harper, TX is 78631, and its area code is 830.

USPS city name
1 ZIP code
Population
1,214
Area code
830
State
Texas

Harper in numbers

About 1,214 people live in Harper, in 411 households. The median owner-occupied home is valued at $434,600 (53% above the Texas median). The median age is 34.6; 26.1% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 29 minutes.

Population1,214Harper1,214
Households411Harper411
Median age34.6Harper34.6Texas35.6US 38.9
Median home value$434,600Harper$434,600Texas$283,800US $332,700
Bachelor's degree or higher26.1%Harper26.1%Texas33.8%US 35.7%
Mean commute28.5 minHarper28.5 minTexas26.7 minUS 26.4 min
Population density21 / sq miHarper21 / sq mi

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

ZIP codes addressed as Harper

ZIP codes with the USPS city name Harper
ZIP City Type Population Median income Median home
78631 Harper , TX Standard 3,465 $78,560 $351,600

Map of Harper ZIP codes

78631

The ZIP codes of Harper, TX, 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 Harper

The nearest larger towns are Ingram (1,917 people, 13 mi), Kerrville (24,755 people, 18 mi) and Fredericksburg (11,419 people, 24 mi).

Towns near Harper
TownPopulationDistance
Kerrville 24,755 17.9 mi
Fredericksburg 11,419 23.7 mi

More nearby: every ZIP code in Kimble County · Texas ZIP codes

Cite this page

zipcodes.pro. “Harper, TX ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/tx/harper

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