29,797 people live in San Carlos, where the median age is 41.6 and the average individual income is $126,389. Data provided by the U.S. Census Bureau.
Total Population
Median Age
Population Density Population Density This is the number of people per square mile in a neighborhood.
Average individual Income
San Carlos, California -- At a Glance
San Carlos Real Estate and Community Facts
County
San Mateo County
Zip Code
94070
Population
~31,000
Area
5.5 square miles
Median Home Price
$1.8M to $2.8M+
School District
San Carlos K-8 + Sequoia Union HSD
Caltrain Access
San Carlos Station -- Baby Bullet stop
Drive to SF
~30 min by Caltrain or Highway 101
Bordered By
Belmont (north), Redwood City (south)
Located In
San Francisco Bay Area, Mid-Peninsula
Incorporated
1925
Nickname
"City of Good Living"
San Carlos sits between Belmont and Redwood City in the heart of the San Francisco Bay Area's Mid-Peninsula. It is entirely within San Mateo County and served by a single zip code: 94070. The San Carlos School District is consistently ranked among the top five K-8 public school districts in California -- the primary reason families choose San Carlos over adjacent Peninsula communities at comparable or higher price points. The city covers 5.5 square miles and has a population of approximately 31,000 residents.
Looking at San Carlos real estate?
San Carlos offers top-ranked schools at a meaningful discount to Palo Alto and Menlo Park
The San Carlos School District consistently outperforms neighboring districts at significantly lower entry prices than Palo Alto or Menlo Park. Inventory moves quickly -- Drew Doran tracks San Carlos listings before they hit the MLS and has deep relationships across the local market.
San Carlos earned its "City of Good Living" nickname through a combination of factors that most Peninsula cities cannot replicate simultaneously: a walkable downtown on Laurel Street, a top-ranked K-8 public school district, Caltrain Baby Bullet access to San Francisco in under 30 minutes, and a residential character that is genuinely family-focused rather than transient. The rolling hills above downtown offer Bay views, and the flat grid below provides neighborhood walkability -- coffee shops, restaurants, a weekly farmers market -- that residents in more affluent but less practical Peninsula markets often lack.
San Carlos covers 5.5 square miles entirely within San Mateo County. The western neighborhoods sit in the foothills with Bay views and larger lots; the eastern neighborhoods are flatter, more grid-like, and closer to Caltrain and downtown Laurel Street. Both sides share the same school district and the same zip code: 94070.
San Carlos sits in a value pocket between Redwood City to the south and Belmont to the north. Homes range from $1.8M for a well-maintained ranch on a standard lot to $3M+ for a remodeled hillside property with Bay views. The price differential versus Menlo Park or Palo Alto is meaningful -- and the school district quality gap is far smaller than the price gap suggests.
For families with school-age children who work in the South Bay or San Francisco, San Carlos is consistently the most rational value proposition on the Peninsula. The combination of school quality, Caltrain access, walkable downtown, and sub-Menlo pricing is difficult to replicate anywhere else in San Mateo County.
San Carlos is often the best value play for families who need school quality, Caltrain access, and walkable downtown amenities -- without the prestige premium of Palo Alto or Menlo Park.
| Community | County | Zip Code | Median Price Range | School Quality | Caltrain | Best For |
|---|---|---|---|---|---|---|
| San Carlos | San Mateo | 94070 | $1.8M to $2.8M | Top K-8 in CA | Baby Bullet stop | Families, value-focused buyers, SF/SB commuters |
| Belmont | San Mateo | 94002 | $1.6M to $2.4M | Strong -- Belmont-Redwood Shores USD | Yes | Entry-level Peninsula, hillside views |
| Redwood City | San Mateo | 94061, 94062, 94063, 94065 | $1.4M to $2.2M | Good -- Redwood City ESD | Yes (3 stops) | Active downtown, lower entry price |
| Menlo Park | San Mateo | 94025 | $2.5M to $5M+ | Excellent -- Las Lomitas / Ravenswood | Yes | Sand Hill Road proximity, prestige |
| Palo Alto | Santa Clara | 94301, 94303, 94306 | $3.5M to $8M+ | Top-ranked -- PAUSD | Yes | Stanford proximity, walkable luxury |
| San Mateo | San Mateo | 94401, 94402, 94403, 94404 | $1.3M to $2.0M | Good -- San Mateo-Foster City USD | Yes (multiple stops) | Larger city amenities, lower entry |
Sources: San Mateo County Assessor: zip code boundaries; California Department of Education: district rankings; MLS median price ranges: 12-month trailing 2025 to 2026
The San Carlos School District serves grades K-8 and is consistently ranked among the top five public elementary and middle school districts in California. The district operates six elementary schools and two middle schools across San Carlos's 5.5 square miles. High school students attend Carlmont High School in the Sequoia Union High School District, which offers strong AP and IB programs with college acceptance rates that compare favorably with private school alternatives in the area.
San Carlos's downtown is anchored by Laurel Street -- a walkable commercial corridor with a density of independent restaurants, coffee shops, and wine bars that punches well above its size for a Peninsula suburb of 31,000.
The primary community park in San Carlos, Burton Park features scenic walking trails through redwood groves, a children's playground, sports facilities, a performance stage, and a dedicated fenced dog park. Flanagan Field within the park hosts Summer Movie Nights from June through August -- outdoor screenings at sunset, free to attend.
The San Carlos Art and Wine Faire in October brings 250+ artists, food and drink vendors, and live entertainment across three stages. The Night of Holiday Lights in December is a family-focused winter festival with carolers, holiday shows, and a snow machine in the downtown plaza.
San Carlos's western edge borders the Peninsula hills, providing quick access to the San Francisco Bay Trail along the Bay shoreline, Belmont Creek Trail, and the open space preserves of the San Mateo County parks system. The combination of Bay access to the east and hillside trails to the west gives San Carlos an outdoor range unusual for a city of its density and size.
San Carlos is in San Mateo County, California. It is located on the San Francisco Peninsula between Belmont to the north and Redwood City to the south. The city's single zip code is 94070, and it is entirely within San Mateo County.
San Carlos uses a single zip code: 94070. This zip code covers the entire city of San Carlos, which is located in San Mateo County on the San Francisco Bay Area's Mid-Peninsula. The area code for San Carlos is 650.
San Carlos has a population of approximately 31,000 residents. The city covers 5.5 square miles in San Mateo County, giving it a population density of roughly 5,600 people per square mile. San Carlos was incorporated in 1925 and has maintained a stable population base while home values have appreciated significantly alongside broader Peninsula real estate trends.
Yes. San Carlos consistently ranks among the top Peninsula communities for families and working professionals. It offers a top-ranked K-8 public school district, a walkable downtown on Laurel Street, a Baby Bullet Caltrain stop with direct access to San Francisco in under 30 minutes, and home prices that are meaningfully below Palo Alto and Menlo Park while delivering comparable school quality. The "City of Good Living" nickname reflects a community that has maintained genuine neighborhood character despite its proximity to Silicon Valley.
San Carlos has a low crime rate relative to most Bay Area cities of comparable size. It is a residential community with a strong neighborhood character and an active city government focused on quality of life. San Carlos consistently receives high marks in livability and safety surveys of San Mateo County communities.
The San Carlos School District serves K-8 and is consistently ranked among the top five public elementary and middle school districts in California. High school students attend Carlmont High School in the Sequoia Union High School District. The school district quality is one of the most commonly cited reasons families choose San Carlos over adjacent Peninsula communities at lower price points.
San Carlos is approximately 25 miles south of San Francisco. By Caltrain Baby Bullet, the commute takes under 30 minutes with a direct stop at San Carlos Station. By car on Highway 101, the commute runs 30 to 45 minutes depending on traffic. San Carlos is one of the most transit-accessible cities on the Mid-Peninsula.
Median home prices in San Carlos range from approximately $1.8M for a standard lot single-family home to $2.8M+ for a remodeled property or hillside home with Bay views. The market is competitive -- well-priced homes in San Carlos routinely receive multiple offers within the first week of listing. Entry-level condos and townhomes start in the $900K to $1.3M range.
San Carlos is located on the San Francisco Peninsula in San Mateo County, California, approximately 25 miles south of San Francisco and 25 miles north of San Jose. It sits between Belmont to the north and Redwood City to the south, at an elevation ranging from sea level near the Bay to approximately 500 feet in the western foothills. The city is accessible via Highway 101, Interstate 280, and the Caltrain Baby Bullet line.
San Carlos sits at the center of the Mid-Peninsula residential corridor. The communities immediately adjacent each offer a variation on the core Peninsula proposition -- school quality, Caltrain access, and proximity to South Bay and San Francisco employment.
Drew Doran | The Doran Team | Compass
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Drew Doran has represented buyers and sellers in San Carlos for over a decade. San Carlos is one of the most frequently requested markets in the Doran Team portfolio -- buyers who initially target Palo Alto or Menlo Park often land in San Carlos once they weigh school quality against price. Drew's off-market relationships in San Carlos give buyers access to homes before they appear on the MLS.
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There's plenty to do around San Carlos, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.
Explore popular things to do in the area, including Razarun Dresses & Tailoring, Behind The Glass, and Rally Gymnastics.
| Name | Category | Distance | Reviews |
Ratings by
Yelp
|
|---|---|---|---|---|
| Shopping | 1.59 miles | 20 reviews | 5/5 stars | |
| Shopping | 1.07 miles | 7 reviews | 5/5 stars | |
| Active | 0.99 miles | 6 reviews | 5/5 stars | |
| Active | 2.52 miles | 17 reviews | 5/5 stars | |
| Active | 1.29 miles | 12 reviews | 5/5 stars | |
| Active | 2.42 miles | 28 reviews | 5/5 stars | |
| Active | 0.73 miles | 21 reviews | 5/5 stars | |
| Active | 1.99 miles | 20 reviews | 5/5 stars | |
| Active | 2.11 miles | 36 reviews | 5/5 stars | |
| Active | 1.29 miles | 14 reviews | 5/5 stars | |
| Active | 2.09 miles | 34 reviews | 5/5 stars | |
| Active | 2.6 miles | 10 reviews | 5/5 stars | |
| Active | 1.67 miles | 50 reviews | 5/5 stars | |
| Active | 3.72 miles | 173 reviews | 5/5 stars | |
| Beauty | 1.91 miles | 50 reviews | 5/5 stars | |
| Beauty | 3.29 miles | 50 reviews | 5/5 stars | |
| Beauty | 1.58 miles | 19 reviews | 5/5 stars | |
| Beauty | 0.67 miles | 13 reviews | 5/5 stars | |
| Beauty | 1.64 miles | 14 reviews | 5/5 stars | |
| Beauty | 2.18 miles | 5 reviews | 5/5 stars | |
| Beauty | 0.95 miles | 25 reviews | 5/5 stars | |
| Beauty | 0.94 miles | 78 reviews | 5/5 stars | |
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San Carlos has 11,052 households, with an average household size of 2.68. Data provided by the U.S. Census Bureau. Here’s what the people living in San Carlos do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 29,797 people call San Carlos home. The population density is 5,505.87 and the largest age group is Data provided by the U.S. Census Bureau.
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Population Density Population Density This is the number of people per square mile in a neighborhood.
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