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/ELGIN

Elgin ZIP code, Texas

The ZIP code for Elgin, TX is 78621, and its area codes are 737 and 512.

USPS city name
1 ZIP code
Population
11,563
Area codes
737, 512
State
Texas

Elgin in numbers

About 11,563 people live in Elgin, in 4,375 households. The median household income is $91,114 a year, 16% above the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $326,400 (15% above the Texas median), and median gross rent is $1,440 a month. The median age is 36.6; 23.1% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 32 minutes.

Population11,563Elgin11,563
Households4,375Elgin4,375
Median age36.6Elgin36.6Texas35.6US 38.9
Median household income$91,114Elgin$91,114Texas$78,476US $80,734
Median home value$326,400Elgin$326,400Texas$283,800US $332,700
Median gross rent$1,440Elgin$1,440Texas$1,403US $1,413
Bachelor's degree or higher23.1%Elgin23.1%Texas33.8%US 35.7%
Mean commute32.3 minElgin32.3 minTexas26.7 minUS 26.4 min
Population density1,610 / sq miElgin1,610 / sq mi

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

ZIP codes addressed as Elgin

ZIP codes with the USPS city name Elgin
ZIP City Type Population Median income Median home
78621 Elgin , TX Standard 30,411 $98,534 $320,800

Map of Elgin ZIP codes

78621

The ZIP codes of Elgin, 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 Elgin

The nearest larger towns are Manor (18,603 people, 9.9 mi), Pflugerville (65,971 people, 14 mi) and Hornsby Bend (12,367 people, 14 mi).

Towns near Elgin
TownPopulationDistance
Manor 18,603 9.9 mi
Camp Swift 8,239 12.9 mi
Pflugerville 65,971 14.1 mi
Hornsby Bend 12,367 14.3 mi
Taylor 17,136 15.2 mi
Hutto 35,483 15.8 mi
Circle D-KC Estates 3,135 16.2 mi
Wyldwood 4,934 16.4 mi
Bastrop 11,156 17.4 mi
Wells Branch 13,523 18.3 mi
Round Rock 127,786 20.1 mi
Cedar Creek 4,440 20.1 mi
Austin 979,539 22.0 mi
Brushy Creek 19,576 23.4 mi

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

Cite this page

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

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