County crime profile · 2024 · large county · property-led
St. Mary's County, MD
At 113,777 residents, St. Mary's County is a large county in Maryland. FBI UCR county totals below are read before any per-100,000 rate (Census denominator when matched).
Compiled by PlainCrime, Independent crime-data publisher
Data updated 2026-07-13
1,187
Property offenses
257
Violent offenses
1,444
Total · 2024
St. Mary's County, MD reported 226 violent crimes per 100,000 in FBI UCR 2024
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, St. Mary's County, MD agencies reported 257 violent and 1,187 property offenses. That equals about 226 violent and 1043 property crimes per 100,000 using a verified Census population join. Table 10 coverage is a voluntary subset of U.S. counties.
2024 UCR year
257 violent offenses
226/100K violent rate
What the 2024 FBI UCR record shows for St. Mary's County, MD
Position in the state cohort
St. Mary's County reported a higher violent-crime rate than most comparable Maryland counties
At 225.9 reported violent offenses per 100,000 residents in 2024, St. Mary's County ranks 4 of 19 — above 15 of the 18 other Maryland counties whose 2024 submission passes this site’s completeness test and carries a matched Census denominator. That is +173.3% against the cohort median of 82.7. Counties that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
2021–2024 direction
The reported violent-crime rate ended the window lower
Across 4 comparable reporting years, the rate moved from 250.5 per 100,000 in 2021 to 225.9 in 2024 (-9.8%). The highest observed value was 250.5 in 2021 and the lowest 152.1 in 2023. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
On a large county row, county figures aggregate every participating agency inside the county. Participation is voluntary. Per-100,000 rates use a separately matched 2020 U.S. Census county population, never a Table 10 field; unmatched counties stay count-only. A large county line encloses very different communities.
Property Crime
1,187
Violent Crime
257
Data Year
2024
Crime Breakdown (2024) · property-led · large county
Category
Count
Property Crime
1,187
Burglary
181
Larceny-Theft
920
Motor Vehicle Theft
86
Arson
5
Violent Crime
257
Murder
3
Rape
49
Robbery
22
Aggravated Assault
183
Frequently Asked Questions
What is the crime rate in St. Mary's County, MD?▼
In 2024, St. Mary's County reported 257 violent crimes and 1,187 property crimes. The most common violent crime was aggravated assault, and the most common property crime was larceny-theft.
Is St. Mary's County safe?▼
St. Mary's County reported 1,444 total crimes in 2024.Property crime accounts for the majority of offenses. Compare with other counties in Maryland on our state page for context.
Similar-Size Counties in Maryland
A per-capita rate is easiest to read against places of similar scale, so these are the Maryland counties closest to St. Mary's County in population. Their populations run from 68,106 to 154,705, against 113,777 here. Or launch the
side-by-side compare tool
to benchmark two jurisdictions directly.
Source: FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10.
FBI Table 10 supplies county offense counts but no resident population. Where this page shows a per-100,000 rate, the denominator is a separately matched 2020 U.S. Census Bureau county population; unmatched county rows remain count-only. Statewide comparisons draw on the state UCR program. Verify with FBI.gov UCR and Census.gov QuickFacts.