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HomeCaliforniaSan Diego CountyLake San Marcos

Lake San Marcos, California: commercial real estate data.

Lake San Marcos is a Census CDP of 4,693 people across 1.71 square miles of land, in San Diego County. Median household income is $89,851, 79.0 percent of occupied homes are owned.

Underlined figures are computed by MMCG Analytics, not published by the agency.

Lake San Marcos

What Lake San Marcos is

  • Census place typeCDP
  • Land area1.71 sq mi
  • Water area0.1 sq mi
  • Population per square mile of land2,749
  • 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.

Lake San Marcos

How many people live in Lake San Marcos

  • Population4,693
  • Median age63.0
  • Population under 18389 plus or minus 105
  • Share under 188.3 percent plus or minus 1.9
  • Population 65 and over2,192
  • Share 65 and over46.7 percent plus or minus 9.8
  • Households2,000
  • Family households1,283
  • Share of households that are families64.1 percent

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Lake San Marcos

Income and work in Lake San Marcos

  • Median household income$89,851
  • Per capita income$53,343
  • Civilian labor force1,998 plus or minus 510
  • Employed1,916 plus or minus 503
  • Unemployed82 plus or minus 71
  • Unemployment rate4.1 percent plus or minus 3.4
  • Adults 25 and over4,041
  • Adults 25 and over with a high school diploma or higher85.4 percent
  • Adults 25 and over with a bachelor degree or higher35.6 percent
  • Adults 25 and over with a graduate degree14.3 percent plus or minus 4.0

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Lake San Marcos

Housing in Lake San Marcos

  • Housing units2,117
  • Occupied units2,000
  • Vacant units117 plus or minus 109
  • Vacancy rate5.5 percent plus or minus 5.1
  • Owner occupied1,581
  • Renter occupied419 plus or minus 115
  • Ownership rate79.0 percent
  • Median owner-occupied home value$917,000
  • Median gross rent, monthly$2,585
  • Annual rent as a share of median income34.5 percent plus or minus 7.3
  • Single family units1,703
  • Share single family80.4 percent
  • Units in buildings of two or more414 plus or minus 127
  • Share in buildings of two or more19.6 percent plus or minus 5.5
  • Mobile homes0
  • Median year structure built1979

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Lake San Marcos

How Lake San Marcos gets to work

  • Workers 16 and over who commute1,396 plus or minus 423
  • Commuting under 15 minutes274 plus or minus 105
  • Share commuting under 15 minutes19.6 percent plus or minus 4.6
  • Commuting 30 minutes or more470 plus or minus 137
  • Share commuting 30 minutes or more33.7 percent plus or minus 14.2
  • Drove alone74.0 percent
  • Carpooled2.0 percent plus or minus 1.9
  • Public transport0.0 percent
  • Walked0.0 percent
  • Worked from home23.5 percent plus or minus 6.2

US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

San Diego County, not Lake San Marcos

San Diego County context, not Lake San Marcos figures

  • Establishments in San Diego County93,407
  • Covered employment, San Diego County1,536,541
  • Average annual pay, San Diego County$82,854
  • Housing units permitted, San Diego County11,572

Every figure in this section is published for San Diego County as a whole and is not a measurement of Lake San Marcos.

All San Diego County figures →

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

Lake San Marcos questions, answered from the record.

How many people live in Lake San Marcos, California?

4,693, in 2,000 households. Lake San Marcos CDP covers 1.71 square miles of land, which is 2,749 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

What county is Lake 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 Lake San Marcos?

$89,851. The median owner-occupied home is valued at $917,000. Median gross rent is $2,585 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.

Are the county figures on this page Lake 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 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 Lake San Marcos.

Is zoning published for Lake San Marcos?

No. Nothing on this page presents parcel level zoning.