78674
ZIP 78674 is Weir, Texas, in Williamson County; area codes 512 and 737; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Williamson
- Metro area
- Austin-Round Rock-San Marcos, TX
- Population
- 108
- Coordinates
- 30.6706, -97.5985
Weather right now
Asking the National Weather Service…
Where 78674 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.
- 🔢 Type 78674 into a pocket calculator and turn it upside down: hLgBL — not quite a word, sorry.
- ➕ As a number, 78,674 = 2 × 139 × 283. Its digits add up to 32, a total 644 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011001101010010 - 🏠 Its numerical neighbours: 78673 (Walburg, TX, 5 mi away) and 78675 (Willow City, TX, 68 mi away).
- 🔄 Backwards, 78674 becomes 47687, which is not a ZIP code at all.
- 👥 22 other ZIP codes are made of exactly the same digits (46778, 46787, 47876, 48767, 64778, 67478, …). The farthest-flung twin is 48767 in Unionville, MI, 1,184 miles away.
- 🧭 Farther south than 91% of all ZIP codes, and farther west than 76%.
- 🎯635 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 78674 and you would come out at 30.67°S, 82.40°E — 1,438 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 08m of daylight. Shortest: 10h 10m.
- 📏 At 0.358 square miles of land, 78674 is bigger than 4% of ZIP codes — about 173 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 108This ZIP108 |
|---|---|
| Households | 33This ZIP33 |
| Housing units | 44This ZIP44 |
| Median age | 37.7This ZIP37.7Texas35.6US 38.9 |
| Median home value | $47,500This ZIP$47,500Texas$283,800US $332,700 |
| Bachelor's degree or higher | 0.0% |
| Mean commute | 24.2 minThis ZIP24.2 min |
| Population density | 301.7 / sq miThis ZIP301.7 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 43This ZIP43 |
| Annual payroll | $1,158,000This ZIP$1,158,000 |
Land area
| Land area | 0.36 sq miThis ZIP0.36 sq mi |
|---|---|
| Water area | 0.00 sq miThis ZIP0.00 sq mi |
Other place names in 78674
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 78674
| ZIP | City | Distance |
|---|---|---|
78680 | Round Rock, TX | 1.0 mi |
78682 | Round Rock, TX | 1.0 mi |
78683 | Round Rock, TX | 1.0 mi |
78626 | Georgetown, TX | 1.4 mi |
78673 | Walburg, TX | 4.9 mi |
78627 | Georgetown, TX | 5.4 mi |
78634 | Hutto, TX | 8.3 mi |
78665 | Round Rock, TX | 8.7 mi |
76537 | Jarrell, TX | 10.1 mi |
78633 | Georgetown, TX | 10.3 mi |
Find every ZIP code within 10 miles of 78674 →
Questions about this ZIP code
Where is ZIP code 78674?
78674 is in Weir, Texas, in Williamson County, part of the Austin-Round Rock-San Marcos, TX metropolitan area. Its published point location is 30.6706, -97.5985.
What county is 78674 in?
78674 lies in Williamson County.
What area code is 78674?
Weir uses area codes 512 and 737, from NANPA's telephone records.
What time zone is 78674 in?
78674 uses America/Chicago.
How many people live in 78674?
About 108 people live in ZIP code 78674, in 33 households, at 301.7 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 78674?
The closest are 78680 (1 mi), 78682 (1 mi), 78683 (1 mi), 78626 (1.4 mi) and 78673 (4.9 mi).
Is 78674 a PO Box ZIP code?
78674 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “78674 ZIP Code — Weir, Texas (Williamson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78674
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/78674.json Underlying data is public domain or openly licensed — sources, vintages and licences.