Census data was accessed from the University of Virginia Historical Census Browser.

County	Total Population	Free Black Males	Free Black Females	Total Free Blacks	Enslaved Males	Enslaved Females	Total Enslaved
ALLEGANY	22,769	186	226	412	311	413	724
ANNE ARUNDEL	32,393	2,338	2,264	4,602	5,939	5,310	11,249
BALTIMORE	41,592			3,633			3,772
BALTIMORE CITY	169,054			25,442			2,945
CALVERT	9,646	732	798	1,530	2,238	2,248	4,486
CAROLINE	9,692	1,378	1,410	2,788	416	392	808
CARROLL	20,616	476	498	974	499	476	975
CECIL	18,939	1,371	1,252	2,623	414	430	844
CHARLES	16,162	455	458	913	5,009	4,575	9,584
DORCHESTER	18,877	1,851	1,997	3,848	2,177	2,105	4,282
FREDERICK	40,987	1,824	1,936	3,760	1,983	1,930	3,913
HARFORD	19,356	1,427	1,350	2,777	1,060	1,106	2,166
KENT	11,386	1,572	1,571	3,143	1,412	1,215	2,627
MONTGOMERY	15,860	632	679	1,311	2,632	2,482	5,114
PRINCE GEORGE'S	21,549	554	584	1,138	5,929	5,581	11,510
QUEEN ANNE'S	14,484	1,597	1,681	3,278	2,230	2,040	4,270
SOMERSET	22,456	1,741	1,742	3,483	2,930	2,658	5,588
ST MARY'S	13,698	806	827	1,633	2,993	2,849	5,842
TALBOT	13,811	1,279	1,314	2,593	2,144	1,990	4,134
WASHINGTON	30,848	854	974	1,828	967	1,123	2,090
WORCESTER	18,859	1,486	1,528	3,014	1,797	1,647	3,444
TOTAL	583,034	35,192	39,531	74,723	45,944	44,424	90,368