What is the crime rate for ZIP code 21797?

The FBI does not publish crime data by ZIP code, and for Howard County, MD (the county containing ZIP 21797) agencies did not report complete 2024 data to the UCR Program. The county figures shown cover only the agencies that submitted, so no meaningful crime rate can be stated for this area. Low reported counts here indicate missing reports, not an absence of crime.

What county is ZIP code 21797 in?

ZIP code 21797 is located in Howard County, MD.

ZIP code profile · 2024 county data

ZIP Code 21797

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

Compiled by PlainCrime

Data updated 2026-08-24

9,034
Population (ZIP): 0
Violent rate /100K (county): 0
Property rate /100K (county)

Is ZIP code 21797 safe? Honest data snapshot

ZIP code 21797 sits within Howard County, MD, in which law-enforcement agencies did not report complete 2024 data to the FBI UCR Program. The county figures below cover only the agencies that submitted, so they are not a measure of crime in this area and no comparison to the national average is drawn from them.

ZIP 21797 carries a Census-reported population of 9,034, ranking #10 of 20 ZIPs in Howard County, spread across 43.68 square miles (about 207 people per square mile). For a full breakdown of Howard County's crime categories and year-over-year trend, see the Howard County crime page linked below.

ZIP 21797 has no FBI-native crime rate (postal codes are not police jurisdictions). Figures above use the Howard County proxy where reported; see methodology for the ZCTA plurality map. Methodology.

ZIP 21797 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: $179,271
Median age: 45.1 years
Owner-occupied homes: 91%
Occupied homes: 2,962

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

ZIP 21797 settlement vs Howard County

ZIP 21797 itself is about 207 people per Census sq mi across 43.7 sq mi (9,034 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 21797 accounts for roughly 2.7% of the county reporting population (9,034 of 332,317).

Settlement lines use Census ZCTA figures only; incomplete county agency coverage blocks any UCR mix or rate desk for this ZIP.

Nationwide peers for ZIP 21797

Similar Census population (~9,034)

ZIP 72472, AR · 9,032 pop · Δ2
ZIP 15208, PA · 9,037 pop · Δ3
ZIP 50220, IA · 9,037 pop · Δ3
ZIP 63144, MO · 9,027 pop · Δ7

County detail: Howard 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.