PlainZIP

San Carlos, CA · standard

ZIP Code 94070

San Mateo County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

29,166
1,836/sq mi
$240,074
Median income
$2,000,000+
Median home value
70.5%
Bachelor's or higher

The verdict

San Carlos pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 1%
household income, US ZIPs
Top 1%
home value, US ZIPs
1,836
people per sq mi
69%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 94070 against every reporting US ZIP.

ZIP code 94070 is a densely settled ZIP (a standard USPS delivery area) in San Carlos, San Mateo County, California, with 29,166 residents across 15.9 square miles, a density of 1,836 people per square mile, in the Los Angeles time zone.

ZIP 94070 skews affluent, with a median household income of $240,074 (136% above the California average), while per-capita income is $128,170. 3.3% of residents live below the poverty line, and the unemployment rate reads 5.0%. The typical home here is valued at $2,000,000+ (159% above the state average); renters pay a median of $2,854 monthly, and 68.6% of units are owner-occupied.

This is a highly-educated ZIP: 70.5% of adults hold a bachelor's degree or higher, the median age is 41.6, and the average commute is 25 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 94070, plus 6 more within San Mateo County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 94070

Top 5 sectors by establishment count in San Carlos, CA

Which industries have the most business establishments in ZIP 94070.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 94070, San Carlos, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

29,166

Population

15.9

Area (sq mi)

1,836

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 94070?

41.6

Median Age

49.4%

Male

50.6%

Female

25.7%

Foreign-Born

White 57.5%
African American 0.6%
Asian 23.3%
American Indian or Alaska Native 0.2%
Native Hawaiian or Pacific Islander 0.7%
Two or More Ethnicities 13.8%
Hispanic or Latino 10.9%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$240,074

Median Household Income

+136% vs state

$128,170

Per Capita Income

3.3%

Poverty Rate

5.0%

Unemployment Rate

24.6 min

Mean Commute Time

How ZIP 94070 ranks nationally

San Carlos, CA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$240,074 Top 1% higher than 99% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). Below this entry. $200,000–$220,000: 324 US ZIPs (1%). This entry sits in this band. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 77.4%
Bachelor's Degree or Higher 70.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

11,905

Total Housing Units

11,279

Occupied Units

626

Vacant Units

2.69

Avg Household Size

Occupancy Type

Owner 68.6%
Renter 31.4%

$2,000,000+

Median Home Value

+159% vs state

$2,854

Median Rent

1962

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

-3.0%

YoY Change (2024)

259

HPI Index (2000 = 100)

+159%

Total Change Since 2000

Home values in ZIP 94070 have decreased 3.0% over the past year (2024). Since 2000, this ZIP has seen +159% cumulative appreciation.

Year Annual Change HPI Index
2019 -23.6% 204
2020 -16.6% 171
2021 -3.7% 164
2022 -3.0% 159
2024 – 259

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 1,357 business establishments in ZIP 94070, employing approximately 20,055 people with a combined annual payroll of $2,259,199,000.

1,357

Businesses

20,055

Employees

$2.3B

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 288 21.2%
Construction 164 12.1%
Health care and social assistance 127 9.4%
Accommodation and food services 122 9.0%
Retail trade 120 8.8%
Other services (except public administration) 97 7.2%
Wholesale trade 75 5.5%
Real estate and rental and leasing 69 5.1%
Manufacturing 66 4.9%
Administrative and support and waste management and remediation services 62 4.6%
Finance and insurance 53 3.9%
Information 35 2.6%
Educational services 30 2.2%
Arts, entertainment, and recreation 23 1.7%
Transportation and warehousing 20 1.5%
Management of companies and enterprises 5 0.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 94070 vs 94002 →

ZIP 94070 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 94070 ranks #6 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 94070 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 94070 ranks #2 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
94002 Belmont, CA 25,992 1.9 mi
94404 San Mateo, CA 33,749 4.0 mi
94065 Redwood City, CA 11,359 2.9 mi
94063 Redwood City, CA 30,949 3.4 mi
94061 Redwood City, CA 36,245 3.1 mi
94403 San Mateo, CA 39,642 3.4 mi
94402 San Mateo, CA 23,981 4.6 mi
94027 Atherton, CA 7,089 4.7 mi
94062 Redwood City, CA 25,876 5.6 mi
94401 San Mateo, CA 34,429 5.9 mi

More ZIP Codes in San Mateo County

94080 standard
South San Francisco, CA
Pop: 63,975
94015 standard
Daly City, CA
Pop: 60,927
94014 standard
Daly City, CA
Pop: 47,014
94303 standard
Palo Alto, CA
Pop: 45,467
94066 standard
San Bruno, CA
Pop: 41,130
94010 standard
Burlingame, CA
Pop: 40,737

Related Areas

San Mateo County San Carlos, CA California

Frequently Asked Questions

What county is ZIP code 94070 in? ▼
ZIP code 94070 (San Carlos) is located in San Mateo County, California. San Mateo County contains multiple ZIP codes, see the full list at /counties/san-mateo-ca.
What is the population of ZIP code 94070? ▼
ZIP code 94070 in San Carlos, CA has a population of 29,166 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 94070? ▼
The median household income in ZIP 94070 is $240,074, which is 215% above the national average of $76,288.
What is the average home value in ZIP 94070? ▼
The median home value in ZIP 94070 is $2,000,000+, which is 619% above the national average of $278,155.
What is the demographic makeup of ZIP 94070? ▼
The largest racial group in ZIP 94070 is White at 57.5%. Hispanic or Latino residents make up 10.9% of the population.
How many businesses are in ZIP code 94070? ▼
ZIP code 94070 has 1,357 business establishments employing approximately 20,055 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 94070? ▼
The top industries by establishment count in ZIP 94070 are: Professional, scientific, and technical services (288), Construction (164), Health care and social assistance (127). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 94070? ▼
According to the FHFA House Price Index, home values in ZIP 94070 decreased by 3.0% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 159%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 94070? ▼
In ZIP code 94070, 77.4% of residents aged 25+ have a high school diploma or higher, and 70.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 94070? ▼
The mean commute time for workers in ZIP code 94070 is 24.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 94070? ▼
In ZIP code 94070, approximately 68.6% of occupied housing units are owner-occupied and 31.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 94070? ▼
The poverty rate in ZIP code 94070 is 3.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.