ZIP code profile · 2024 county data

ZIP Code 20778

Anne Arundel County, Maryland: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-08-24

1,890
Property rate /100K (county)
2,564
Population (ZIP)
297
Violent rate /100K (county)

Is ZIP code 20778 safe? Honest data snapshot

ZIP code 20778 sits within Anne Arundel County, MD. The figures below are the county's own FBI UCR numbers for 2024, the most accurate available statistic for this location, not a ZIP-specific calculation.

Anne Arundel County reported a violent-crime rate of 297 per 100,000 residents and a property-crime rate of 1,890 per 100,000 in 2024, drawing on county-level agency submissions.

ZIP 20778 carries a Census-reported population of 2,564, ranking #29 of 37 ZIPs in Anne Arundel County, spread across 7.64 square miles (about 336 people per square mile). For a full breakdown of Anne Arundel County's crime categories and year-over-year trend, see the Anne Arundel County crime page linked below.

ZIP 20778 has no FBI-native crime rate (postal codes are not police jurisdictions). The property-led county proxy above is from Anne Arundel County agency submissions; see methodology for the ZCTA plurality map. Methodology.

ZIP 20778 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
$178,854
Median age
47.1 years
Owner-occupied homes
97%
Occupied homes
859

Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, and occupied housing tenure).

How useful is the county proxy for ZIP 20778?

Participating agencies give Anne Arundel County a split reported profile: violent crime is 16% below the U.S. benchmark while property crime is 10% above it. The categories should be read separately; the submissions neither establish complete county coverage nor provide a ZIP-specific rate for 20778. 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.

ZIP 20778 sits near the middle of Anne Arundel County's ZIP population ordering (#29 of 37). The county comparison is useful regional context, but it cannot say how reported incidents are distributed within this postal area.

Anne Arundel County UCR book ZIP 20778 inherits

ZIP 20778 itself is about 336 people per Census sq mi across 7.6 sq mi (2,564 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 20778 is about 0.4% of the county reporting population (2,564 of 588,261), so most of the denominator and submitted incidents sit outside this postal code.

Anne Arundel County's 2024 UCR book concentrates in larceny-theft (67% of 12,863 offenses; mix index 4,793). ZIP 20778 inherits that county mix, not a postal-native split.

Anne Arundel 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 20778

Similar county violent rate (~297/100K)

Similar Census population (~2,564)

County detail: Anne Arundel County · State atlas: Maryland

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.