Data / Rankings / Traffic fatality rate / Counties in Maryland

Counties in Maryland by traffic fatality rate

Caroline County had the highest traffic fatality rate of 24 counties in 2023, at 35.5 per 100,000 people. Montgomery County had the lowest, at 4.3 per 100,000 people. The median was 11.4 per 100,000 people and the figure for Maryland was 10 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest35.5Caroline County
Lowest4.3Montgomery County
Median11.424 counties
Maryland10History

Map of counties, 2023

Allegany County: 14.9 per 100,000 peopleAnne Arundel County: 7.3 per 100,000 peopleBaltimore County: 10.8 per 100,000 peopleCalvert County: 10.5 per 100,000 peopleCaroline County: 35.5 per 100,000 peopleCarroll County: 6.8 per 100,000 peopleCecil County: 24.6 per 100,000 peopleCharles County: 12.2 per 100,000 peopleDorchester County: 18.2 per 100,000 peopleFrederick County: 11.2 per 100,000 peopleGarrett County: 17.5 per 100,000 peopleHarford County: 9.1 per 100,000 peopleHoward County: 6.8 per 100,000 peopleKent County: 5.1 per 100,000 peopleMontgomery County: 4.3 per 100,000 peoplePrince George's County: 14.6 per 100,000 peopleQueen Anne's County: 20.9 per 100,000 peopleSt. Mary's County: 11.3 per 100,000 peopleSomerset County: 16 per 100,000 peopleTalbot County: 10.5 per 100,000 peopleWashington County: 11.5 per 100,000 peopleWicomico County: 12.3 per 100,000 peopleWorcester County: 12.9 per 100,000 peopleBaltimore city: 8.1 per 100,000 people
  • Under 7.8
  • 7.8 to 11
  • 11 to 12
  • 12 to 17
  • 17 and over
per 100,000 people, 2023. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Caroline County: 35.5 per 100,000 peopleCaroline County35.5Cecil County: 24.6 per 100,000 peopleCecil County24.6Queen Anne's County: 20.9 per 100,000 peopleQueen Anne's County20.9Dorchester County: 18.2 per 100,000 peopleDorchester County18.2Garrett County: 17.5 per 100,000 peopleGarrett County17.5Somerset County: 16 per 100,000 peopleSomerset County16Allegany County: 14.9 per 100,000 peopleAllegany County14.9Prince George's County: 14.6 per 100,000 peoplePrince George's County14.6Worcester County: 12.9 per 100,000 peopleWorcester County12.9Wicomico County: 12.3 per 100,000 peopleWicomico County12.3Charles County: 12.2 per 100,000 peopleCharles County12.2Washington County: 11.5 per 100,000 peopleWashington County11.5St. Mary's County: 11.3 per 100,000 peopleSt. Mary's County11.3Frederick County: 11.2 per 100,000 peopleFrederick County11.2Baltimore County: 10.8 per 100,000 peopleBaltimore County10.8Calvert County: 10.5 per 100,000 peopleCalvert County10.5Talbot County: 10.5 per 100,000 peopleTalbot County10.5Harford County: 9.1 per 100,000 peopleHarford County9.1Baltimore city: 8.1 per 100,000 peopleBaltimore city8.1Anne Arundel County: 7.3 per 100,000 peopleAnne Arundel County7.3Howard County: 6.8 per 100,000 peopleHoward County6.8Carroll County: 6.8 per 100,000 peopleCarroll County6.8Kent County: 5.1 per 100,000 peopleKent County5.1Montgomery County: 4.3 per 100,000 peopleMontgomery County4.3Caroline County: 35.5 per 100,000 peopleCaroline County35.5Cecil County: 24.6 per 100,000 peopleCecil County24.6Queen Anne's County: 20.9 per 100,000 peopleQueen Anne's County20.9Dorchester County: 18.2 per 100,000 peopleDorchester County18.2Garrett County: 17.5 per 100,000 peopleGarrett County17.5Somerset County: 16 per 100,000 peopleSomerset County16Allegany County: 14.9 per 100,000 peopleAllegany County14.9Prince George's County: 14.6 per 100,000 peoplePrince George's County14.6Worcester County: 12.9 per 100,000 peopleWorcester County12.9Wicomico County: 12.3 per 100,000 peopleWicomico County12.3Charles County: 12.2 per 100,000 peopleCharles County12.2Washington County: 11.5 per 100,000 peopleWashington County11.5St. Mary's County: 11.3 per 100,000 peopleSt. Mary's County11.3Frederick County: 11.2 per 100,000 peopleFrederick County11.2Baltimore County: 10.8 per 100,000 peopleBaltimore County10.8Calvert County: 10.5 per 100,000 peopleCalvert County10.5Talbot County: 10.5 per 100,000 peopleTalbot County10.5Harford County: 9.1 per 100,000 peopleHarford County9.1Baltimore city: 8.1 per 100,000 peopleBaltimore city8.1Anne Arundel County: 7.3 per 100,000 peopleAnne Arundel County7.3Howard County: 6.8 per 100,000 peopleHoward County6.8Carroll County: 6.8 per 100,000 peopleCarroll County6.8Kent County: 5.1 per 100,000 peopleKent County5.1Montgomery County: 4.3 per 100,000 peopleMontgomery County4.3
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2023
per 100,000 people		Change on 2022
1Caroline County35.5+17.6 pts
2Cecil County24.6+3.6 pts
3Queen Anne's County20.9+13.2 pts
4Dorchester County18.2+2.9 pts
5Garrett County17.5-3.4 pts
6Somerset County16+3.8 pts
7Allegany County14.9+3 pts
8Prince George's County14.6+1.9 pts
9Worcester County12.9-9.3 pts
10Wicomico County12.3+1.8 pts
11Charles County12.2-2.5 pts
12Washington County11.5-2 pts
13St. Mary's County11.3+3.4 pts
14Frederick County11.2+0.8 pts
15Baltimore County10.8+3.1 pts
16Calvert County10.5+2.1 pts
17Talbot County10.5-0 pts
18Harford County9.1+1.1 pts
19Baltimore city8.10 pts
20Anne Arundel County7.3-0.7 pts
21Howard County6.8-1.8 pts
22Carroll County6.8+1.7 pts
23Kent County5.1-5.2 pts
24Montgomery County4.3-0.4 pts

Other periods

About this ranking

Traffic fatalities (NHTSA FARS) per 100,000 residents in the same year and place.

Deaths are counted where the crash happened and divided by the resident population, so counties with busy highways and few residents can show very high rates. Differs from the WHO road traffic death rate (road_traffic_death_rate).

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Retrieved 2026-10-12.

Citation styles

Invokely calculated this figure from the publishers' data, so Invokely is the author and the publishers of the inputs are named.

APA 7

Invokely. (n.d.). NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents (Counties in Maryland by traffic fatality rate, 2023) [Data set]. Calculated from data by NHTSA and BEA. Retrieved October 12, 2026, from https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k

MLA 9

NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents, Counties in Maryland by traffic fatality rate, 2023. Calculated from data by NHTSA and BEA. Invokely, https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Accessed 12 Oct. 2026.

Chicago (author-date)

Invokely. n.d. NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. Counties in Maryland by traffic fatality rate, 2023. Dataset. Calculated from data by NHTSA and BEA. Accessed October 12, 2026. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k.

Harvard

Invokely (no date) NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents, Counties in Maryland by traffic fatality rate, 2023 [Dataset]. Calculated from data by NHTSA and BEA. Available at: https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k (Accessed: 12 October 2026).

BibTeX
@misc{invokely_counties_in_maryland_by_2023,
  author = {{Invokely}},
  title = {{NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in Maryland by traffic fatality rate, 2023}},
  howpublished = {Data set},
  url = {https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k},
  urldate = {2026-10-12},
  note = {Calculated from data by NHTSA and BEA. Accessed via Invokely, https://invokely.ai/rankings/traffic-fatality-rate/maryland-counties?period=2023. Publisher attribution: Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology\#traffic\_fatality\_rate\_per\_100k. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - Invokely
TI  - NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents: Counties in Maryland by traffic fatality rate, 2023
PB  - Invokely
DB  - Invokely
UR  - https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k
L2  - https://invokely.ai/rankings/traffic-fatality-rate/maryland-counties?period=2023
Y2  - 2026/10/12
N1  - Calculated from data by NHTSA and BEA.
N1  - Accessed via Invokely, https://invokely.ai/rankings/traffic-fatality-rate/maryland-counties?period=2023.
N1  - Publisher attribution: Invokely calculation from NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. https://invokely.ai/docs/methodology#traffic_fatality_rate_per_100k. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest traffic fatality rate?

Caroline County, with 35.5 per 100,000 people in 2023, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Montgomery County, with 4.3 per 100,000 people in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Invokely, NHTSA FARS traffic fatalities divided by BEA mid-year population (SAINC1 and CAINC1), per 100,000 residents. Retrieved 2026-10-12.

Traffic fatality rate: other rankings

Counties in Maryland: more rankings