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Data Last Updated: September 1, 2021
Zip Code 78666, San Marcos, TX
ZIP Code 78666 Details
| Zip Code: | 78666 |
| City: | San Marcos |
| State: | TX [Texas] |
| Counties: | HAYS, TX CALDWELL, TX COMAL, TX GUADALUPE, TX |
| Multi County: | Yes |
| City Alias(es): | San Marcos |
| Area Code: | 512 / 737 |
| City Type: | P [Post Office] |
| Classification: | [Non-Unique] |
| Time Zone: | Central (GMT -06:00) |
| Observes Daylight Saving: | Yes |
| Latitude: | 29.878458 |
| Longitude: | -98.020018 |
| Elevation: | 767 ft |
| State FIPS: | 48 |
| County FIPS: | 209 |
| Region: | South |
| Division: | West South Central |
| Intro Date: | <2004-10 |
ZIP Code 78666 2010 Census Demographics
| Current Population: | 75,359 |
| 2010 Population: | 63,836 |
| Households per ZIP Code: | 22,874 |
| Average House Value: | $172,100 |
| Avg. Income Per Household: | $44,159 |
| Persons Per Household: | 2.44 |
| White Population: | 51,545 |
| Black Population: | 3,565 |
| Hispanic Population: | 25,958 |
| Asian Population: | 1,467 |
| American Indian Population: | 971 |
| Hawaiian Population: | 148 |
| Other Population: | 8,082 |
| Male Population: | 32,138 |
| Female Population: | 31,698 |
| Median Age: | 23.90 years |
| Male Median Age: | 24.00 years |
| Female Median Age: | 23.70 years |
ZIP Code 78666 Other Demographics
| # Residential Mailboxes: | 30,885 |
| # Business Mailboxes: | 2,241 |
| Total Delivery Receptacles: | 51,381 |
| Number of Businesses: | 1719 |
| 1st Quarter Payroll: | $252,842,000 |
| Annual Payroll: | $1,058,334,000 |
| # of Employees: | 32,759 |
| Water Area: | 0.93 sq mi |
| Land Area: | 176.603 sq mi |
| 113th Congressional District: | 15|21|25|35 |
| 113th Congressional Land Area: | 7804.07|5920.89|7620.7|593.77 sq mi |
| Single Family Delivery Units: | 11,612 |
| Multi Family Delivery Units: | 10,936 |
| # Residential Mailboxes: | 30,885 |
| # Business Mailboxes: | 2,241 |
| Total Delivery Receptacles: | 51,381 |
ZIP Code 78666 Social Security Benefits
| 2018 | 2019 | Delta | |
| Total Beneficiaries: | 8,360 | 8,790 | +430 |
| Retired Workers: | 5,720 | 6,100 | +380 |
| Disabled Workers: | 1,105 | 1,120 | +15 |
| Widow(er)s and Parents: | 590 | 615 | +25 |
| Spouses: | 340 | 355 | +15 |
| Children: | 605 | 600 | -5 |
| 65+: | 6,215 | 6,645 | +430 |
| Monthly Benefits - All: | $10,767,000 | $11,717,000 | +$950,000 |
| Monthly Benefits - Retired Workers: | $8,071,000 | $8,888,000 | +$817,000 |
| Monthly Benefits - Widow(ers): | $770,000 | $825,000 | +$55,000 |
ZIP Code 78666 Statistical Areas
| CBSA: | 12420 |
| CBSA Name: | Austin-Round Rock-Georgetown, TX |
| CBSA Type: | Metro |
| CBSA Division: | |
| CBSA Division Name: | |
| CBSA Population: | 1,716,289 |
| CBSA Division Population: | 0 |
| MSA: | 0640 |
| MSA Name: | Austin-San Marcos, TX MSA |
| PMSA: | |
| PMSA Name: | |
| City State Key: | W25520 |
| Preferred Last Line Key: | W25520 |
78665: Previous ZIP Code |
Next ZIP Code: 78667 |
References
- U.S. Postal Service [Last Updated: 9/1/2021], https://www.usps.com
- ZIP-Codes.com Internal Data Creation [Last Updated: 9/1/2021], https://www.zip-codes.com
- U.S. Geological Survey [Updated as needed], https://www.usgs.gov/
- U.S. Census [Updated Yearly], https://www.census.gov
- U.S. Census American National Standards Institute (ANSI) [Last Updated: 9/1/2021], https://www.census.gov
- U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov
- Centers for Medicare & Medicaid Services [Updated Yearly], https://www.cms.gov/
