HomeCaliforniaSan Diego CountySan Marcos city
San Marcos city, California: commercial real estate data.
San Marcos city is a Census city of 94,882 people across 24.57 square miles of land, in San Diego County. Median household income is $109,377, 63.7 percent of occupied homes are owned, and the SBA record carries 182 7(a) approvals to borrowers here worth $107.3 m.
82 sourced place values · tier FULL · 9 sections · underlined figures are computed by MMCG Analytics, not published by the agency
San Marcos
What San Marcos is
- Census place typecity
- Land area24.57 sq mi
- Water area0.02 sq mi
- Population per square mile of land3,862
- County holding the largest share of its areaSan Diego County, 100.0 percent
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
- Population94,882
- Median age36.8
- Population under 1823,919
- Share under 1825.2 percent
- Population 65 and over12,506
- Share 65 and over13.2 percent
- Households31,350
- Family households23,400
- Share of households that are families74.6 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$109,377
- Per capita income$47,841
- Civilian labor force48,420
- Employed46,169
- Unemployed2,251
- Unemployment rate4.6 percent
- Adults 25 and over61,920
- Adults 25 and over with a high school diploma or higher88.2 percent
- Adults 25 and over with a bachelor degree or higher43.8 percent
- Adults 25 and over with a graduate degree15.5 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
San Marcos
Housing in San Marcos
- Housing units32,557
- Occupied units31,350
- Vacant units1,207 plus or minus 325
- Vacancy rate3.7 percent plus or minus 1.0
- Owner occupied19,976
- Renter occupied11,374
- Ownership rate63.7 percent
- Median owner-occupied home value$868,000
- Median gross rent, monthly$2,348
- Annual rent as a share of median income25.8 percent
- Single family units20,319
- Share single family62.4 percent
- Units in buildings of two or more8,931
- Share in buildings of two or more27.4 percent
- Mobile homes3,282
- Median year structure built1996
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 commute36,308
- Commuting under 15 minutes7,412
- Share commuting under 15 minutes20.4 percent
- Commuting 30 minutes or more15,242
- Share commuting 30 minutes or more42.0 percent
- Drove alone67.7 percent
- Carpooled8.0 percent
- Public transport0.5 percent plus or minus 0.2
- Walked1.5 percent plus or minus 0.5
- Worked from home20.5 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))
- Approvals182
- Gross approval$107,329,700
- Average approval$589,724
- Median approval$300,000
- Ninetieth percentile approval$1,239,000
- Largest approval$5,000,000
- Jobs supported1,833
- Jobs per approval10.1
- Loans with a final outcome27
- Paid in full26
- Charged off1
- Charge-off rate over resolved loans3.7 percent
- Median term120 months
- Share on real estate terms of 20 years or more16.5 percent
- Share to franchises8.8 percent
- Distinct lenders50
- Distinct industries by NAICS107
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)
- Approvals94
- Gross approval$74,136,000
- Average approval$788,681
- Median approval$616,000
- Largest approval$3,829,000
- Jobs supported1,184
- Loans with a final outcome33
- Charged off0
- Charge-off rate over resolved loans0.0 percent
- Median term300 months
- Distinct CDCs8
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
- Listed NFIP communities1
- Of those, participating1
- NFIP community number060296
- Currently effective map date03/03/26
This community carries no Community Rating System class, so no CRS premium discount applies to it.
FEMA, National Flood Insurance Program Community Status Book, Community Status Book, as retrieved.
San Diego County, not San Marcos
San Diego County context, not San Marcos figures
These are San Diego County figures. There is no place level equivalent published for any of them, so they are shown as the county backdrop and never as San Marcos measurements.
- Establishments in San Diego County93,407
- Employment at those establishments, San Diego County1,391,721
- Covered employment, San Diego County1,536,541
- Average annual pay, San Diego County$82,854
- Average weekly wage, San Diego County$1,593
- Housing units permitted, San Diego County11,572
- Of those, single family, San Diego County3,377
- County product, 2024, San Diego County$331,867,565,000
- County product change over the prior year, San Diego County5.3 percent
- Average income of an arriving household, San Diego County$103,475
Every figure in this section is published for San Diego County as a whole and is not a measurement of San Marcos. It is here because a county backdrop is what a credit committee reads a place against, and it is labelled so that it can never be quoted as the place's own.
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. US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- Parcel level detail, zoning and flood zone at an address are resolved in the platform, not on this page.
SBA figures count approvals to borrowers whose address is in the place. They are not approvals for projects inside the place boundary: the tape records a borrower city and a project county, and those can differ.
Common questions
San Marcos questions, answered from the record.
How many people live in San Marcos, California?
94,882, in 31,350 households. San Marcos city covers 24.57 square miles of land, which is 3,862 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 Diego County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in San Marcos?
$109,377. The median owner-occupied home is valued at $868,000. Median gross rent is $2,348 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?
182 7(a) approvals totalling $107.3 m, across 50 lenders, median approval $300,000, plus 94 504 approvals worth $74.1 m. 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?
Of the 27 loans that have reached a final outcome, 26 were paid in full and 1 charged off, a charge off rate of 3.7 percent. Loans still running are excluded because they have not yet succeeded or failed.
Is San Marcos in the National Flood Insurance Program?
Yes. San Marcos appears in the FEMA Community Status Book as community 060296, with no Community Rating System class, so no CRS discount applies. 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 labelled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for San Diego 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?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning.
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