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 — ZIP/78837

78837

ZIP 78837 is Comstock, Texas, in Val Verde County; area code 432; Central time.

Type
Standard
Time zone
America/Chicago
County
Val Verde
Metro area
Del Rio, TX
Population
128
Coordinates
29.9308, -101.2849
☼ Live from 78837 — Comstock, TX

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 78837 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 78837
  • 🔢 Type 78837 into a pocket calculator and turn it upside down: LEBBL — not quite a word, sorry.
  • ➕ As a number, 78,837 = 3 × 11 × 2389. Its digits add up to 33, a total 456 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001111110101
  • 🏠 Its numerical neighbours: 78836 (Catarina, TX, 150 mi away) and 78838 (Concan, TX, 99 mi away).
  • 🔄 Backwards, 78837 becomes 73887, which is not a ZIP code at all.
  • 👥 11 other ZIP codes are made of exactly the same digits (37878, 37887, 38778, 38877, 77388, 77838, …). The farthest-flung twin is 83877 in Post Falls, ID, 1,484 miles away.
  • 🧭 Farther south than 93% of all ZIP codes, and farther west than 80%.
  • 🎯701 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78837 and you would come out at 29.93°S, 78.72°E — 1,414 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 04m of daylight. Shortest: 10h 13m.
  • 📏 At 806.6 square miles of land, 78837 is bigger than 99% of ZIP codes — room for about 612 Central Parks.
🌙 The sky over 78837 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population128This ZIP128
Households70This ZIP70
Housing units101This ZIP101
Median age66.5This ZIP66.5Texas35.6US 38.9
Median household income$49,737This ZIP$49,737Texas$78,476US $80,734
Median home value$209,200This ZIP$209,200Texas$283,800US $332,700
Bachelor's degree or higher62.5%This ZIP62.5%
Population density0.2 / sq miThis ZIP0.2 / sq mi

Land area

Land area806.57 sq miThis ZIP806.57 sq mi
Water area7.30 sq miThis ZIP7.30 sq mi

ZIP codes near 78837

ZIPCityDistance
78841 Del Rio, TX 12.8 mi
78871 Langtry, TX 20.2 mi
78840 Del Rio, TX 25.6 mi
78842 Del Rio, TX 26.2 mi
76943 Ozona, TX 37.3 mi
78851 Dryden, TX 43.0 mi
78847 Del Rio, TX 45.6 mi
78843 Laughlin Afb, TX 50.3 mi
79781 Sheffield, TX 55.3 mi
76950 Sonora, TX 55.4 mi

Find every ZIP code within 10 miles of 78837 →

Questions about this ZIP code

Where is ZIP code 78837?

78837 is in Comstock, Texas, in Val Verde County, part of the Del Rio, TX micropolitan area. Its published point location is 29.9308, -101.2849.

What county is 78837 in?

78837 lies in Val Verde County.

What area code is 78837?

Comstock uses area code 432, from NANPA's telephone records.

What time zone is 78837 in?

78837 uses America/Chicago.

How many people live in 78837?

About 128 people live in ZIP code 78837, in 70 households, at 0.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 78837?

$49,737 a year, against $78,476 across Texas.

What ZIP codes are near 78837?

The closest are 78841 (12.8 mi), 78871 (20.2 mi), 78840 (25.6 mi), 78842 (26.2 mi) and 76943 (37.3 mi).

Is 78837 a PO Box ZIP code?

78837 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “78837 ZIP Code — Comstock, Texas (Val Verde County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78837

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/78837.json

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