ZIP code profile · 2024 county data
ZIP Code 94030
San Mateo County, California: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.
Data updated 2026-09-05
- 213
- Property rate /100K (county)
- 22,825
- Population (ZIP)
- 31
- Violent rate /100K (county)
Is ZIP code 94030 safe? Honest data snapshot
ZIP code 94030 sits within San Mateo County, CA, a county whose reported crime runs below the national average (see the county-level FBI figures below, not a ZIP-specific calculation).
Reported crime here runs well below the national average: 31 violent incidents and 213 property incidents per 100,000 residents in 2024, per county-level agency submissions.
ZIP 94030 carries a Census-reported population of 22,825, ranking #17 of 30 ZIPs in San Mateo County, spread across 3.37 square miles (about 6,773 people per square mile). For a full breakdown of San Mateo County's crime categories and year-over-year trend, see the San Mateo County crime page linked below.
ZIP 94030 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from San Mateo County agency submissions; see methodology for the ZCTA plurality map. Methodology.
ZIP 94030 Census context
These are ZIP/ZCTA demographic estimates, separate from the county-level FBI proxy above. They describe the local settlement, not a crime rate.
- Median household income
- $146,649
- Median age
- 45.7 years
- Owner-occupied homes
- 61%
- Occupied homes
- 8,074
- Median home value
- $1,874,100
- Bachelor's degree or higher
- 49.7%
- Poverty rate
- 6.4%
- Unemployment rate
- 5.3%
ZIP 94030's median home value of $1,874,100 is higher than 97% of the 1,569 CA ZIPs with a reported value, one of the priciest in the state by this measure.
Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, housing tenure, home value, education, and unemployment).
How useful is the county proxy for ZIP 94030?
Within the participating-agency records for San Mateo County, reported violent and property crime rates both sit below their U.S. benchmarks: violent crime is 91% below and property crime is 88% below. The two submitted measures point in the same direction, but they do not establish complete county coverage or turn the result into a ZIP-level rating for 94030. Both comparisons use the same 2024 county reporting population and FBI-submitted counts, so the two directions are internally comparable for this release, not evidence about a different year.
94030 is a densely settled part of the county at about 6,773 people per square mile. Density is not a crime predictor on its own; it only shows why a county-wide average can conceal a very different local setting inside this ZIP.
San Mateo County UCR book ZIP 94030 inherits
ZIP 94030 itself is about 6,773 people per Census sq mi across 3.4 sq mi (22,825 residents), a postal settlement fact independent of the county UCR proxy.
ZIP 94030 accounts for roughly 3% of the county reporting population (22,825 of 764,442).
San Mateo County's 2024 UCR book concentrates in larceny-theft (61% of 1,869 offenses; mix index 4,157). ZIP 94030 inherits that county mix, not a postal-native split.
San Mateo County 2024 vs 2023: violent counts -14% vs 2023; property counts -11% vs 2023. Year-over-year moves are county agency submissions, still not ZIP-native.
San Mateo County offense mix (2024)
Mix index is HHI × 10,000 on county offense-type shares. Distinct from the per-100K rates in the hero; still county-agency data, not a ZIP-native FBI table.
Nationwide peers for ZIP 94030
Similar county violent rate (~31/100K)
- ZIP 41102, KY · 31.1/100K · Boyd County
- ZIP 61350, IL · 31/100K · La Salle County
- ZIP 46755, IN · 31.6/100K · Noble County
- ZIP 62401, IL · 31.7/100K · Effingham County
Similar Census population (~22,825)
- ZIP 33167, FL · 22,823 pop · Δ2
- ZIP 48167, MI · 22,830 pop · Δ5
- ZIP 30314, GA · 22,835 pop · Δ10
- ZIP 77019, TX · 22,839 pop · Δ14
County detail: San Mateo County · State atlas: California
Sources: U.S. Census Bureau (ZIP population, land area, 2020 ZCTA-to-county relationship file, ACS 5-year estimates) and FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10 (county-level crime, attributed via ZIP-to-county crosswalk).
Verify with Census.gov Geography and FBI.gov UCR.
Read our methodology , how this data is sourced, computed, and verified.
Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. This page combines Census ZIP-level figures with a ZIP-to-county crosswalk to attribute FBI UCR crime data honestly, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.