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Zip Code 78674 — Weir, TX

ZIP Code 78674 is associated with Weir, TX, in Williamson County. The listed population estimate is 108; estimated density is 116.6 people per square mile. Among records with population estimates, it ranks #18 of 18 in Williamson County and #1808 of 1,924 in TX.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (30.672130, -97.596530)

Data MetricLocal Statistic
Postal / Zip Code78674
Primary CityWeir
State / ProvinceTX
CountyWilliamson
Total Population108
Population Density116.6 people/sq mi
TimezoneAmerica/Chicago

How 78674 Compares

MetricZIP 78674Williamson County recordsTX records
Population estimate108591,187 (sum)30,188,035 (sum)
Population Density116.6 /sq mi----
County population rank#18 of 18----
State population rank#1808 of 1,924----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TX

ZIP CodeCityDistancePopulation estimate
ZIP 78626Georgetown0.4 mi48,072
ZIP 78634Hutto8.4 mi46,413
ZIP 78665Round Rock8.7 mi66,171
ZIP 78628Georgetown9.2 mi50,822
ZIP 76537Jarrell10.1 mi16,272

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →