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 2018, at 33.2 per 100,000 people. Montgomery County had the lowest, at 3.2 per 100,000 people. The median was 9.7 per 100,000 people and the figure for Maryland was 8.3 per 100,000 people. Source: NHTSA and BEA.

Keep it in a collection in your library.
Highest33.2Caroline County
Lowest3.2Montgomery County
Median9.724 counties
Maryland8.3History

Map of counties, 2018

Allegany County: 8.7 per 100,000 peopleAnne Arundel County: 9.5 per 100,000 peopleBaltimore County: 10 per 100,000 peopleCalvert County: 6.5 per 100,000 peopleCaroline County: 33.2 per 100,000 peopleCarroll County: 6.4 per 100,000 peopleCecil County: 25.2 per 100,000 peopleCharles County: 12.8 per 100,000 peopleDorchester County: 6.2 per 100,000 peopleFrederick County: 6.5 per 100,000 peopleGarrett County: 20.6 per 100,000 peopleHarford County: 4.7 per 100,000 peopleHoward County: 6.1 per 100,000 peopleKent County: 20.6 per 100,000 peopleMontgomery County: 3.2 per 100,000 peoplePrince George's County: 10.8 per 100,000 peopleQueen Anne's County: 10.1 per 100,000 peopleSt. Mary's County: 12.5 per 100,000 peopleSomerset County: 28.1 per 100,000 peopleTalbot County: 10.7 per 100,000 peopleWashington County: 9.1 per 100,000 peopleWicomico County: 6.8 per 100,000 peopleWorcester County: 15.4 per 100,000 peopleBaltimore city: 5.7 per 100,000 people
  • Under 6.3
  • 6.3 to 8.8
  • 8.8 to 11
  • 11 to 17
  • 17 and over
per 100,000 people, 2018. Source: Invokely calculation with data from NHTSA, BEA. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Caroline County: 33.2 per 100,000 peopleCaroline County33.2Somerset County: 28.1 per 100,000 peopleSomerset County28.1Cecil County: 25.2 per 100,000 peopleCecil County25.2Kent County: 20.6 per 100,000 peopleKent County20.6Garrett County: 20.6 per 100,000 peopleGarrett County20.6Worcester County: 15.4 per 100,000 peopleWorcester County15.4Charles County: 12.8 per 100,000 peopleCharles County12.8St. Mary's County: 12.5 per 100,000 peopleSt. Mary's County12.5Prince George's County: 10.8 per 100,000 peoplePrince George's County10.8Talbot County: 10.7 per 100,000 peopleTalbot County10.7Queen Anne's County: 10.1 per 100,000 peopleQueen Anne's County10.1Baltimore County: 10 per 100,000 peopleBaltimore County10Anne Arundel County: 9.5 per 100,000 peopleAnne Arundel County9.5Washington County: 9.1 per 100,000 peopleWashington County9.1Allegany County: 8.7 per 100,000 peopleAllegany County8.7Wicomico County: 6.8 per 100,000 peopleWicomico County6.8Calvert County: 6.5 per 100,000 peopleCalvert County6.5Frederick County: 6.5 per 100,000 peopleFrederick County6.5Carroll County: 6.4 per 100,000 peopleCarroll County6.4Dorchester County: 6.2 per 100,000 peopleDorchester County6.2Howard County: 6.1 per 100,000 peopleHoward County6.1Baltimore city: 5.7 per 100,000 peopleBaltimore city5.7Harford County: 4.7 per 100,000 peopleHarford County4.7Montgomery County: 3.2 per 100,000 peopleMontgomery County3.2Caroline County: 33.2 per 100,000 peopleCaroline County33.2Somerset County: 28.1 per 100,000 peopleSomerset County28.1Cecil County: 25.2 per 100,000 peopleCecil County25.2Kent County: 20.6 per 100,000 peopleKent County20.6Garrett County: 20.6 per 100,000 peopleGarrett County20.6Worcester County: 15.4 per 100,000 peopleWorcester County15.4Charles County: 12.8 per 100,000 peopleCharles County12.8St. Mary's County: 12.5 per 100,000 peopleSt. Mary's County12.5Prince George's County: 10.8 per 100,000 peoplePrince George's County10.8Talbot County: 10.7 per 100,000 peopleTalbot County10.7Queen Anne's County: 10.1 per 100,000 peopleQueen Anne's County10.1Baltimore County: 10 per 100,000 peopleBaltimore County10Anne Arundel County: 9.5 per 100,000 peopleAnne Arundel County9.5Washington County: 9.1 per 100,000 peopleWashington County9.1Allegany County: 8.7 per 100,000 peopleAllegany County8.7Wicomico County: 6.8 per 100,000 peopleWicomico County6.8Calvert County: 6.5 per 100,000 peopleCalvert County6.5Frederick County: 6.5 per 100,000 peopleFrederick County6.5Carroll County: 6.4 per 100,000 peopleCarroll County6.4Dorchester County: 6.2 per 100,000 peopleDorchester County6.2Howard County: 6.1 per 100,000 peopleHoward County6.1Baltimore city: 5.7 per 100,000 peopleBaltimore city5.7Harford County: 4.7 per 100,000 peopleHarford County4.7Montgomery County: 3.2 per 100,000 peopleMontgomery County3.2
per 100,000 people. Source: Invokely calculation with data from NHTSA, BEA. Retrieved 2026-10-12.

Full ranking

RankCounties2018
per 100,000 people		Change on 2017
1Caroline County33.2+8.9 pts
2Somerset County28.1+8.3 pts
3Cecil County25.2-4.9 pts
4Kent County20.6+15.5 pts
5Garrett County20.6+0.1 pts
6Worcester County15.4-0.1 pts
7Charles County12.8-8.9 pts
8St. Mary's County12.5-4.5 pts
9Prince George's County10.8+0.4 pts
10Talbot County10.7-2.7 pts
11Queen Anne's County10.1-18.6 pts
12Baltimore County10+1.4 pts
13Anne Arundel County9.5+1.8 pts
14Washington County9.1-0 pts
15Allegany County8.7+4.4 pts
16Wicomico County6.8-3 pts
17Calvert County6.5-4.4 pts
18Frederick County6.5-4 pts
19Carroll County6.4-8.3 pts
20Dorchester County6.2-12.3 pts
21Howard County6.1+0.9 pts
22Baltimore city5.7-1.6 pts
23Harford County4.7-3.6 pts
24Montgomery County3.2+0.1 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, 2018) [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, 2018. 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, 2018. 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, 2018 [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_2018,
  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, 2018}},
  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=2018. 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, 2018
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=2018
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=2018.
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  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Maryland by traffic fatality rate using official data, and cite the source.
rank_places {"indicator":"traffic_fatality_rate_per_100k","level":"province","within":"Maryland","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=traffic_fatality_rate_per_100k&level=province&within=Maryland&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest traffic fatality rate?

Caroline County, with 33.2 per 100,000 people in 2018, according to NHTSA and BEA.

Which county has the lowest traffic fatality rate?

Montgomery County, with 3.2 per 100,000 people in 2018.

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