Counties in Maryland by establishment entry rate

Prince George's County had the highest establishment entry rate of 24 counties in 2021, at 12.771%. Somerset County had the lowest, at 5.714%. The median was 8.758% and the figure for Maryland was 9.991%. Source: the U.S. Census Bureau.

Highest12.771Prince George's County

Lowest5.714Somerset County

Median8.75824 counties

Maryland9.991History

Map of counties, 2021

Under 7.7
7.7 to 8.4
8.4 to 9.3
9.3 to 9.7
9.7 and over

%, 2021. Source: U.S. Census Bureau, Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

%. Source: U.S. Census Bureau, Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2021 (%)	Change on 2020
1	Prince George's County	12.771	+2.62 pts
2	Charles County	11.184	+1.5 pts
3	Baltimore city	10.839	+1.26 pts
4	Montgomery County	10.388	+1.48 pts
5	Howard County	9.758	+0.07 pts
6	Anne Arundel County	9.644	+1.16 pts
7	Calvert County	9.59	+1.89 pts
8	Baltimore County	9.382	+1.09 pts
9	Worcester County	9.347	+0.33 pts
10	Talbot County	9.331	+3.2 pts
11	Frederick County	9.275	+1.28 pts
12	Harford County	8.933	+0.19 pts
13	Cecil County	8.582	+0.39 pts
14	St. Mary's County	8.463	+0.31 pts
15	Wicomico County	8.435	+0.44 pts
16	Washington County	8.202	+1.25 pts
17	Queen Anne's County	8.052	+0.2 pts
18	Carroll County	7.77	+0.38 pts
19	Garrett County	7.762	-1.48 pts
20	Dorchester County	7.611	-0.08 pts
21	Caroline County	7.194	+0.32 pts
22	Kent County	6.988	+1.03 pts
23	Allegany County	6.691	+1.54 pts
24	Somerset County	5.714	-3.01 pts

Other periods

About this ranking

Establishments that opened during the year (employees in March of the year and none a year earlier), as a percentage of the average number of establishments in the two years. United States: Census Bureau Business Dynamics Statistics.

An establishment is a single physical location, so a new branch of an existing firm counts as an entry: this is not the rate of new firms. Not comparable with enterprise_birth_rate, which counts new enterprises in Europe. The year is the twelve months to March: 2023 compares March 2022 with March 2023.

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

U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2025). Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010 (Counties in Maryland by establishment entry rate, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv

MLA 9

Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010, Counties in Maryland by establishment entry rate, 2021. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Invokely, https://invokely.ai/rankings/establishment-entry-rate/maryland-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. Counties in Maryland by establishment entry rate, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Also distributed by Invokely, https://invokely.ai/rankings/establishment-entry-rate/maryland-counties?period=2021.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010, Counties in Maryland by establishment entry rate, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv, via Invokely: https://invokely.ai/rankings/establishment-entry-rate/maryland-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_maryland_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010: Counties in Maryland by establishment entry rate, 2021}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/establishment-entry-rate/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty.csv. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010: Counties in Maryland by establishment entry rate, 2021
PY  - 2025
DA  - 2025/09/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv
L2  - https://invokely.ai/rankings/establishment-entry-rate/maryland-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/establishment-entry-rate/maryland-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest establishment entry rate?

Prince George's County, with 12.771% in 2021, according to the U.S. Census Bureau.

Which county has the lowest establishment entry rate?

Somerset County, with 5.714% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. Retrieved 2026-10-12.