U.S. ZIP Code tools
78666 · Population & demographics · San Marcos TX
ZIP Code
78666
San Marcos, TX
- City / locality
- San Marcos
- State
- Texas
- ZIP Code type
- Type not provided
- Latitude
- 29.8754
- Longitude
- -97.9404
- Coordinate source
- GeoNames Postal
- Source
- GeoNames Postal
- Source year
- Inherited source snapshot
Some U.S. place names and coordinates come from GeoNames as geographic references. They are not confirmation of the USPS preferred mailing city.
ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.
Population & demographics
acs/acs5 · 2024
ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.
Estimated population
88,583People · Margin of error ±1,333Median age
26.9Years · Margin of error ±0.6Median household income
54,737USD · Margin of error ±3,230Median home value
306,700USD · Margin of error ±19,023Total households
33,949Households · Margin of error ±943Housing units
36,580Count · Margin of error ±856Owner-occupied housing units
12,927Count · Margin of error ±790Renter-occupied housing units
21,022Count · Margin of error ±1,043Median monthly gross rent
1,319USD · Margin of error ±39Household income distribution
USD · Households
$0–$9,9993,227±574
$10,000–$14,9991,571±535
$15,000–$19,9991,102±382
$20,000–$24,9991,359±421
$25,000–$29,9991,625±460
$30,000–$34,9991,810±548
$35,000–$39,9991,774±415
$40,000–$44,9991,277±408
$45,000–$49,9991,457±335
$50,000–$59,9993,341±660
$60,000–$74,9993,739±781
$75,000–$99,9993,823±563
$100,000–$124,9992,889±456
$125,000–$149,9991,622±374
$150,000–$199,9991,552±348
≥ $200,0001,781±387
ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.
Source
U.S. Census Bureau ZCTA cartographic boundaries
Source year: 2020 Census ZCTA cartographic
U.S. Census Bureau ZCTA cartographic boundaries