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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/CALDWELL

Caldwell ZIP code, Texas

The ZIP code for Caldwell, TX is 77836, and its area code is 979.

USPS city name
1 ZIP code
Population
4,394
Area code
979
State
Texas

Caldwell in numbers

About 4,394 people live in Caldwell, in 1,660 households. The median household income is $61,266 a year, 22% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $220,800 (22% below the Texas median), and median gross rent is $950 a month. The median age is 34.0; 19.3% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 19 minutes.

Population4,394Caldwell4,394
Households1,660Caldwell1,660
Median age34.0Caldwell34.0Texas35.6US 38.9
Median household income$61,266Caldwell$61,266Texas$78,476US $80,734
Median home value$220,800Caldwell$220,800Texas$283,800US $332,700
Median gross rent$950Caldwell$950Texas$1,403US $1,413
Bachelor's degree or higher19.3%Caldwell19.3%Texas33.8%US 35.7%
Mean commute18.8 minCaldwell18.8 minTexas26.7 minUS 26.4 min
Population density1,027 / sq miCaldwell1,027 / sq mi

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

ZIP codes addressed as Caldwell

ZIP codes with the USPS city name Caldwell
ZIP City Type Population Median income Median home
77836 Caldwell , TX Standard 12,670 $75,625 $215,100

Map of Caldwell ZIP codes

77836

The ZIP codes of Caldwell, 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 Caldwell

The nearest larger towns are Rockdale (5,523 people, 20 mi), Bryan (87,939 people, 21 mi) and College Station (124,570 people, 24 mi).

Towns near Caldwell
TownPopulationDistance
Rockdale 5,523 20.3 mi
Bryan 87,939 21.2 mi
College Station 124,570 24.3 mi
Hearne 4,555 24.8 mi
Giddings 5,151 27.5 mi
Cameron 5,416 28.2 mi

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

Cite this page

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

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