HomeTexasHays CountySan Marcos
San Marcos, Texas: commercial real estate data.
San Marcos is a Census city of 70,897 people across 39.93 square miles of land, lying across Hays County and Caldwell County. Median household income is $51,281, 30.8 percent of occupied homes are owned, and the SBA record carries 61 7(a) approvals to borrowers here worth $52.7 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
San Marcos
What San Marcos is
- Census place typecity
- Land area39.93 sq mi
- Water area0.13 sq mi
- Population per square mile of land1,776
- County holding the largest share of its areaHays County, 87.7 percent
- Counties this place lies inHays County 87.7 percent, Caldwell County 10.8 percent
San Marcos crosses a county line. The split above is measured from the Census boundary of the place against the county boundaries, by area, so it says where the ground is and not where the town hall is.
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
San Marcos
How many people live in San Marcos
- Population70,897
- Median age25.5
- Population under 189,398
- Share under 1813.3 percent
- Population 65 and over7,637
- Share 65 and over10.8 percent
- Households28,013
- Family households11,804
- Share of households that are families42.1 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
San Marcos
Income and work in San Marcos
- Median household income$51,281
- Per capita income$27,545
- Civilian labor force41,892
- Employed39,728
- Unemployed2,164 plus or minus 492
- Unemployment rate5.2 percent plus or minus 1.2
- Adults 25 and over36,566
- Adults 25 and over with a high school diploma or higher90.5 percent
- Adults 25 and over with a bachelor degree or higher38.3 percent
- Adults 25 and over with a graduate degree14.6 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
San Marcos
Housing in San Marcos
- Housing units30,349
- Occupied units28,013
- Vacant units2,336 plus or minus 487
- Vacancy rate7.7 percent plus or minus 1.6
- Owner occupied8,630
- Renter occupied19,383
- Ownership rate30.8 percent
- Median owner-occupied home value$310,400
- Median gross rent, monthly$1,322
- Annual rent as a share of median income30.9 percent
- Single family units12,023
- Share single family39.6 percent
- Units in buildings of two or more17,553
- Share in buildings of two or more57.8 percent
- Mobile homes751 plus or minus 212
- Median year structure built2001
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
San Marcos
How San Marcos gets to work
- Workers 16 and over who commute34,663
- Commuting under 15 minutes14,147
- Share commuting under 15 minutes40.8 percent
- Commuting 30 minutes or more11,189
- Share commuting 30 minutes or more32.3 percent
- Drove alone68.4 percent
- Carpooled11.4 percent plus or minus 2.3
- Public transport1.3 percent plus or minus 0.6
- Walked4.5 percent plus or minus 1.1
- Worked from home11.1 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
San Marcos
SBA loans in San Marcos (7(a))
- Approvals61
- Gross approval$52,689,500
- Average approval$863,762
- Median approval$438,000
- Ninetieth percentile approval$2,450,000
- Largest approval$5,000,000
- Jobs supported595
- Jobs per approval9.8
- Loans with a final outcome9
- Paid in full7
- Charged off2
- Median term120 months
- Share on real estate terms of 20 years or more32.8 percent
- Share to franchises34.4 percent
- Distinct lenders35
- Distinct industries by NAICS39
Counted by borrower city: approvals to borrowers whose address is in San Marcos, in any county, FY2020 to FY2026. Only 9 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
San Marcos
SBA loans in San Marcos (504)
- Approvals34
- Gross approval$28,019,000
- Average approval$824,088
- Median approval$636,000
- Largest approval$2,440,000
- Jobs supported266
- Loans with a final outcome12
- Charged off0
- Median term240 months
- Distinct CDCs4
Counted by borrower city: approvals to borrowers whose address is in San Marcos, in any county, FY2010 to FY2026. Only 12 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
San Marcos
Flood risk in San Marcos
- NFIP communityCity of San Marcos
- NFIP community number485505
- Participating in the NFIPYes
- Community Rating System classClass 7
- Currently effective map date06/10/26
The City of San Marcos participates in the National Flood Insurance Program as community 485505 and carries Community Rating System class 7, a flood insurance premium discount for policies written there.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Hays County, not San Marcos
Hays County context, not San Marcos figures
- Establishments in Hays County5,891
- Covered employment, Hays County95,598
- Average annual pay, Hays County$54,838
- Housing units permitted, Hays County5,405
Every figure in this section is published for Hays County as a whole and is not a measurement of San Marcos.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
San Marcos questions, answered from the record.
How many people live in San Marcos, Texas?
70,897, in 28,013 households. San Marcos city covers 39.93 square miles of land, which is 1,776 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is San Marcos in?
San Marcos lies in more than one. By area it is 87.7 percent in Hays County, 10.8 percent in Caldwell County. This page sits under Hays County because that county holds the largest share. The split is measured from the Census boundary of the place against the county boundaries.
What is the median household income in San Marcos?
$51,281. The median owner-occupied home is valued at $310,400. Median gross rent is $1,322 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to San Marcos businesses?
61 7(a) approvals totaling $52.7 m since FY2020, across 35 lenders, median approval $438,000, plus 34 504 approvals worth $28.0 m since FY2010. These count approvals to borrowers whose address is in San Marcos, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to San Marcos borrowers get paid back?
No rate is published for San Marcos. Only 9 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is San Marcos in the National Flood Insurance Program?
Yes. San Marcos appears in the FEMA Community Status Book as San Marcos, city of, community 485505, carrying Community Rating System class 7, which is a premium discount for exceeding the program minimum. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page San Marcos figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Hays County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of San Marcos.
Is zoning published for San Marcos?
No. Nothing on this page presents parcel level zoning.