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

County	Free Black Males	Free Black Females	Free Blacks	Total Population	Total Enslaved Population	Enslaved Males	Enslaved Females	Total Slaveholders
ALLEGANY	224	243	467	28,348	666	290	376	187
ANNE ARUNDEL	2,501	2,363	4,864	23,900	7,332	3,937	3,395	801
BALTIMORE	2,153	2,078	4,231	54,135	3,182	1,617	1,565	756
BALTIMORE CITY	10,346	15,334	25,680	212,418	2,218	677	1,541	1,296
CALVERT	908	933	1,841	10,447	4,609	2,329	2,280	528
CAROLINE	1,381	1,405	2,786	11,129	739	377	362	190
CARROLL	589	636	1,225	24,533	783	405	378	208
CECIL	1,498	1,420	2,918	23,862	950	467	483	172
CHARLES	518	550	1,068	16,517	9,653	4,950	4,703	817
DORCHESTER	2,373	2,311	4,684	20,461	4,123	2,105	2,018	754
FREDERICK	2,527	2,430	4,957	46,591	3,243	1,628	1,615	794
HARFORD	1,822	1,822	3,644	23,415	1,800	876	924	657
HOWARD	663	732	1,395	13,338	2,862	1,470	1,392	476
KENT	1,839	1,572	3,411	13,267	2,509	1,285	1,224	611
MONTGOMERY	790	762	1,552	18,322	5,421	2,798	2,623	770
PRINCE GEORGES	601	597	1,198	23,327	12,479	6,513	5,966	847
QUEEN ANNES	1,650	1,722	3,372	15,961	4,174	2,189	1,985	573
SOMERSET	2,306	2,265	4,571	24,992	5,089	2,688	2,401	747
ST MARYS	932	934	1,866	15,213	6,549	3,315	3,234	761
TALBOT	1,505	1,459	2,964	14,795	3,725	1,887	1,838	506
WASHINGTON	803	874	1,677	31,417	1,435	684	751	398
WORCESTER	1,817	1,754	3,571	20,661	3,648	1,826	1,822	934
TOTAL	39,746	44,196	83,942	687,049	87,189	44,313	42,876	13,783