San Marcos, CA
Single-footprint Census roll-up for San Marcos, CA: 2 USPS ZIPs, population 89,275. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.
U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage
ACS city ledger plate
Sheet SAN-MARCOS-CA · San Marcos, CA 2 ZIPs · 89,275 pop · #3253/25278 · San Diego County
INC-HIGH · RANK-TOP · PHOTO-FINISH · BOOK-FEW · OWN-LOW · POP-SMALL · SPREAD-TIGHT · HOME-TOP
- INC-HIGH $108,520
- RANK-TOP #3253/25278
- PHOTO-FINISH ≈ Spring Valley
- BOOK-FEW 2 ZIPs
- OWN-LOW 64% owners
- POP-SMALL 89,275
- SPREAD-TIGHT 92069→92078
- HOME-TOP $871,500
Nearest income peer: Spring Valley, CA ( $2,106 income $)
Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.
Income neighbourhood around San Marcos
Lowest/highest poles plus county-sharing cities nearest San Marcos on average ZIP median household income. Full ladder: /cities.
- National City · lowest
National City · lowest
$66,426 median HH income
- Escondido · near
Escondido · near
$100,933 median HH income
- La Mesa · near
La Mesa · near
$104,139 median HH income
- Spring Valley · near
Spring Valley · near
$106,414 median HH income
- San Marcos · this city
San Marcos · this city
$108,520 median HH income
- Santee · near
Santee · near
$113,618 median HH income
- Encinitas · highest
Encinitas · highest
$158,507 median HH income
What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.
National city placement
According to ACS 5-Year Estimates, San Marcos, CA sits among US cities with an upper-quartile household income, on a small-city population base, across a handful of delivery areas.
- Top 13%
- household income vs 25,278 US cities
- 89,275
- city population (Census)
- 2
- USPS ZIP codes covered
- $108,520
- avg ZIP median income
Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.
High-income footprint on only 2 ZIPs: the city page and the ZIP page nearly coincide. Headline income $108,520 and home value $871,500 should be read as near-neighborhood numbers ; bachelor's attainment averages 42.7%.
Owner-occupancy is comparatively low (64.0%) for this income tier, rent $2,416 may matter more than the home-value average.
Within California, Philo is the closest lower-income city and Sebastopol the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for San Marcos.
Within-city ZIP comparison
Where the ZIP codes inside San Marcos differ
The published income range is comparatively compact across the ZIPs in San Marcos: $96,771 in ZIP 92069 to $120,268 in 92078. The city average is therefore a more representative summary here, though each ZIP page still carries its own housing and demographic record.
- Income high-to-low ratio
- 1.2×
- Home-value high-to-low ratio
- 1.2×
- Poverty-rate spread
- 4.4 points
92069 to 92078
92069 to 92078
92078 to 92069
Derived from the published ACS 2023 ZIP-level records shown on this site. A high-to-low ratio compares the highest and lowest available ZIP values; it is not a score or forecast.
Population concentration
Lead ZIP 92069 skews compact San Marcos
In this 2-ZIP cluster, 92069 covers about 52% of San Marcos's 89,275 residents. City averages lean toward that lead; open a thinner sibling ZIP for the contrast the mean hides.
Census ZBP business roll-up
Employer-heavy short list in San Marcos
Citywide ZBP: 2,697 establishments, 33,021 employees , annual payroll $1,915,752k (~30 establishments per 1,000 residents) across 2 of 2 ZIPs. Peak business ZIP 92078 (1,458 units) ; leading NAICS Professional, scientific, and technical services (361) · also Health care and social assistance · Construction .
ZIP Codes in San Marcos, CA
These ZIP codes sit in San Diego County, which covers 107 ZIP codes in all; 2 of them fall in San Marcos. See the San Diego County roll-up →
San Marcos lands mid-pack among the 12 cities sharing San Diego County: San Diego, Chula Vista and Carlsbad earn more and Oceanside, Escondido and El Cajon earn less. Encinitas marks the far end of that range at $158,507, 46% above San Marcos.
Side-by-side: Compare 92069 vs 92078 →
San Marcos roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving San Marcos, .