138 years in pictures
Census counts: 3,896 in 1970, 94,833 in 2020. The archive holds 1 old photo or paper going back to 2021 and 6 maps from 1893 on.
- 1888San Marcos is settled
Each edition grades its towns against each other only.

For most people who can afford it, yes. San Marcos grades B+ overall, ranked 100th of 841 in California. Its schools outperform 84% of the state's and CDC estimates put its residents' health ahead of 81% of the country. The trade-off is money: the typical home is worth about $954K, 9 years of the San Diego metro’s $106K median household income. San Marcos’ trail density is 2.6 miles per square mile, against 1.0 in California’s towns and 0.4 across U.S. towns. San Marcos is home to California State University-San Marcos. San Marcos's civic life (library use, community groups, volunteering) trails 91% of U.S. towns.
Where San Marcos beats most towns.
| College | Students |
|---|---|
| California State University-San Marcos | 14,549 |
| Palomar College | 13,825 |
| University of St. Augustine for Health Sciences | 4,158 |
| School | Grades | Students |
|---|---|---|
| Double Peak | K–8 | 1,171 |
| Richland Elementary | K–5 | 883 |
| La Mirada Academy | K–8 | 868 |
3 colleges in town.
Each subject compared with towns across the country (schools within California), ordered by how far San Marcos is from typical.
How TownRatings grades towns →
Census counts: 3,896 in 1970, 94,833 in 2020. The archive holds 1 old photo or paper going back to 2021 and 6 maps from 1893 on.
Museums, parks, gardens and other places to visit around San Marcos. Close and well known come first.
Big draw24 mi Stadium & arenaSnapdragon Stadium
30 mi Stadium & arenaPetco Park
8 mi Theme parkLegoland California
28 mi Zoo & aquariumSan Diego Zoo4.0M visitors a year
10 mi Zoo & aquariumSan Diego Zoo Safari Park
26 mi Theme parkSeaWorld San Diego4.0M visitors a yearSnapdragon Stadium: Terrible Tim, CC BY-SA 4.0 · Petco Park: Mds08011, CC BY 4.0 · Legoland California: https://www.flickr.com/photos/jdigger/, CC BY 2.0 · San Diego Zoo: en:User:Cburnett, CC BY-SA 3.0 · San Diego Zoo Safari Park: Flickr user: Olivier Bruchez https://www.flickr.com/photos/bruchez/, CC BY-SA 2.0 · SeaWorld San Diego: ZooFari, CC BY-SA 3.0
Who provides power, water and the rest in San Marcos, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
Ordered by what stands out in San Marcos.
San Marcos fares better on crime within California than nationally, has milder winter nights than nearly all U.S. towns and trades workers with San Diego and other neighbors.
That puts San Marcos where California’s towns sit at 4.2% and U.S. towns at 4.3%. 64 miles of trail in 27 parks and preserves. The biggest park or preserve is Walnut Grove Park, at 39 acres.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. William R Bradley Park | 1.5 mi | 33 |
| 2. Sunset Park | 1.2 mi | 17 |
| 3. San Elijo Hills Park | 0.8 mi | 21 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Its A− for schools comes with a D− for cost of living: the typical home is worth about $954K.
Its public schools are run by the San Marcos Unified school district. Two of its 22 schools are below, each with why it’s listed.
| School | Level | Students | Letter |
|---|---|---|---|
| San Elijo MiddleLargest public middle schoolGrades 6–8 | Grades 6–8 | 1,395 | – |
| San Marcos HighLargest public high schoolGrades 9–12 | Grades 9–12 | 3,067 | – |
NCES · EDFacts · graded within CA on state tests and graduation
25% of adults have obesity in San Marcos. San Marcos beats the California average on 6 of 32 CDC measures and trails it on 1. 27% of adults have high blood pressure in San Marcos.
| San Marcos | California towns | U.S. towns | |
|---|---|---|---|
| Obesity (CDC PLACES) | 25% | 29% | 35% |
| High blood pressure (CDC PLACES) | 27% | 31% | 35% |
| Diabetes (CDC PLACES) | 9.5% | 12% | 12% |
| Frequent physical distress (CDC PLACES) | 12% | 14% | 14% |
| What stands out | San Marcos | CA |
|---|---|---|
| Fewer adults with diabetes | 9.5% | 11.7% |
| Fewer adults who get no exercise | 20.5% | 24.6% |
| Fewer adults treating high blood pressure | 66.9% | 71.3% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
The median rent in San Marcos is $2,348 a month. The typical San Marcos home is worth about $954,000, up 0.8% in a year, 25% above the California typical home. 64% of San Marcos renter households spend 30% or more of their income on rent.
| San Marcos | California towns | U.S. towns | |
|---|---|---|---|
| Median rent | $2,348 a month | $1,895 a month | $1,185 a month |
| Renters paying 30%+ of income on rent | 64% | 55% | 48% |
| Households that own their home | 64% | 64% | 73% |
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
January nights average 45°, milder than in 97% of U.S. towns; July afternoons average 82.1°.
San Marcos has warm winters and pleasant summers, with very little rain. San Marcos’ January low is 45°F. Snow is almost unheard of.
| San Marcos | California towns | U.S. towns | |
|---|---|---|---|
| January low | 45°F | 40°F | 22°F |
| July high | 82°F | 89°F | 85°F |
NOAA U.S. Climate Normals, 1991–2020
At 13.3 crimes per 1,000 residents a year, it reports less crime than 91% of California’s graded towns. Its B tops all 4 graded towns on its borders; Encinitas (B) comes closest.
FBI crime data, 2025 · crimes reported to police
Expected storm and flood damage is higher than in 66% of U.S. communities. Since 1978, 18 flood insurance claims have been paid out in San Marcos.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
San Marcos has about as many jobs (36,169) as working residents, but only 5,408 people both live and work here.
Most working residents leave San Marcos for work: only 13% work in town. Since 2013, San Marcos has added 6,980 jobs, to 36,169 in 2023. The top destinations are San Diego (22%), Carlsbad (11%) and Escondido (6%).
| San Marcos | California towns | U.S. towns | |
|---|---|---|---|
| Work from home | 21% | 14% | 11% |
| Median household income | $109,000 | $95,000 | $80,000 |
| Working residents who work in town | 13% | 6.6% | 8% |
| Average trip to work | 27 minutes | 28 minutes | 25 minutes |
Census LEHD 2023 · ACS
No broad age group is more than 4 points off the California average. 44% of adults 25 and older have a bachelor’s degree or more, vs 37% across California.
| San Marcos | California towns | U.S. towns | |
|---|---|---|---|
| Bachelor’s degree or more, 25+ | 44% | 29% | 29% |
| Aged 65 or older | 13% | 16% | 18% |
| Under 18 | 25% | 22% | 22% |
| Median age | 36.8 years | 39.1 years | 40.5 years |
51% women, 49% men
That’s an even split within the survey’s margin of ±1.3 points. Across California, 50.1% of residents are women. Median age: women 37.4, men 35.9.
| San Marcos | CA | U.S. | |
|---|---|---|---|
| Under 10 | 13.2% | 11.4% | 11.6% |
| 10 to 17 | 12% | 10.5% | 10.3% |
| 18 to 24 | 9.5% | 9.1% | 9.1% |
| 25 to 34 | 13% | 14.8% | 13.7% |
| 35 to 44 | 15.2% | 13.9% | 13.2% |
| 45 to 54 | 12.5% | 12.5% | 12.2% |
| 55 to 64 | 11.3% | 12.1% | 12.7% |
| 65 to 74 | 7.8% | 9.2% | 10.2% |
| 75 and older | 5.4% | 6.5% | 7% |
| No diploma | 11.8% | 15.3% | 10.4% |
| High school | 16.4% | 20.5% | 26% |
| Some college | 19.4% | 19.3% | 19.1% |
| Associate’s | 8.6% | 7.9% | 8.8% |
| Bachelor’s | 28.3% | 22.7% | 21.6% |
| Graduate | 15.5% | 14.4% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates
6 within 15 miles of the center of San Marcos
About 10 of every 100 San Marcos residents are enrolled in college, against 8 across California.
83,781 counted in 2010 and 94,833 in 2020; an estimated 94,908 in 2025.
Growth has leveled off: within 1% of 2020, after 13.2% in the decade before.
U.S. Census 2010 & 2020 counts · Census Bureau estimate, July 1, 2025
3 notable people were born in San Marcos.
City in California, United States
San Marcos ( SAN MAR-kohs; Spanish for "St. Mark") is a city in the North County region of San Diego County, California, United States. As of the 2020 census, the city's population was 94,833. It is the site of California State University San Marcos and Palomar College. The city is bordered by Escondido to the east, Encinitas to the southwest, Carlsbad to the west, and Vista to the northwest. Lake San Marcos is an enclave, or county island, within the southwestern part of the city and its sphere of influence but is an unincorporated community.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
7 towns share a border with San Marcos.
| Town | CA rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| San Marcos | #100 | B+ | D− | B | A− | A− |
| Escondido | #551 | D | D− | C | C+ | B− |
| Carlsbad | #94 | B+ | D− | C+ | A | A+ |
| Vista | #331 | C | D− | B− | B | B+ |
| Lake San Marcos | #184 | B− | D− | — | A− | A− |
| Harmony Grove | #276 | C+ | D− | — | C+ | A |
| Elfin Forest | — | — | — | — | — | — |
| Encinitas | #40 | A− | D− | B | A | A+ |
Lake San Marcos and Harmony Grove report no FBI crime data of their own. Elfin Forest isn’t graded (fewer than 1,000 residents, or not enough data). Compare San Marcos with a neighbor →
Short answers, built from the data on this page.
For most people who can afford it, yes. San Marcos grades B+ overall, better than 67% of U.S. towns and #100 of 841 in California. It grades A− for health, B for safety and A− for schools. Cost of living is its weak spot, with a D−.
3 notable people were born here, including Liliana Mumy and Fred Warner.