Marengo County Demographics

Population Trend

Period	Population	Change	% Change
1820	2,933	—	—
1830	7,700	+4,767	+162.5%
1840	17,264	+9,564	+124.2%
1850	27,831	+10,567	+61.2%
1860	31,171	+3,340	+12.0%
1870	26,151	-5,020	-16.1%
1880	30,890	+4,739	+18.1%
1890	33,095	+2,205	+7.1%
1900	38,315	+5,220	+15.8%
1910	39,923	+1,608	+4.2%
1920	36,065	-3,858	-9.7%
1930	36,426	+361	+1.0%
1940	35,736	-690	-1.9%
1950	29,494	-6,242	-17.5%
1960	27,098	-2,396	-8.1%
1970	23,819	-3,279	-12.1%
1980	25,047	+1,228	+5.2%
1990	23,084	-1,963	-7.8%
2000	22,539	-545	-2.4%
2010	21,027	-1,512	-6.7%
2020	19,323	-1,704	-8.1%
2024	18,512	-811	-4.2%

#	Name	Population	Growth
1	Demopolis	6,724	—
2	Linden	1,815	-32.7%
3	Thomaston	311	-54.2%
4	Sweet Water	216	-14.6%
5	Putnam	172	-10.9%
6	Providence	162	-55.4%
7	Faunsdale	82	-52.9%
8	Nanafalia	75	-20.2%
9	Myrtlewood	68	-73.0%
10	Dayton	28	-75.2%

Year	Marengo County	Alabama	Share
1820	2,933	135,378	2.17%
1830	7,700	309,527	2.49%
1840	17,264	576,496	2.99%
1850	27,831	752,918	3.70%
1860	31,171	964,201	3.23%
1870	26,151	981,905	2.66%
1880	30,890	1,262,505	2.45%
1890	33,095	1,513,017	2.19%
1900	38,315	1,828,697	2.10%
1910	39,923	2,138,093	1.87%
1920	36,065	2,348,174	1.54%
1930	36,426	2,646,248	1.38%
1940	35,736	2,832,961	1.26%
1950	29,494	3,061,743	0.96%
1960	27,098	3,266,740	0.83%
1970	23,819	3,444,165	0.69%
1980	25,047	3,893,888	0.64%
1990	23,084	4,040,587	0.57%
2000	22,539	4,447,100	0.51%
2010	21,027	4,779,736	0.44%
2020	19,323	5,024,279	0.38%
2024	18,512	5,157,699	0.36%

Year	Population	Source
1820	2,933	Decennial Census
1830	7,700	Decennial Census
1840	17,264	Decennial Census
1850	27,831	Decennial Census
1860	31,171	Decennial Census
1870	26,151	Decennial Census
1880	30,890	Decennial Census
1890	33,095	Decennial Census
1900	38,315	Decennial Census
1910	39,923	Decennial Census
1920	36,065	Decennial Census
1930	36,426	Decennial Census
1940	35,736	Decennial Census
1950	29,494	Decennial Census
1960	27,098	Decennial Census
1970	23,819	Decennial Census
1980	25,047	Decennial Census
1990	23,084	Decennial Census
2000	22,539	Decennial Census
2001	22,217	Population Estimates Program
2002	22,025	Population Estimates Program
2003	21,777	Population Estimates Program
2004	21,569	Population Estimates Program
2005	21,531	Population Estimates Program
2006	21,475	Population Estimates Program
2007	21,331	Population Estimates Program
2008	21,170	Population Estimates Program
2009	21,027	Population Estimates Program
2010	21,027	Decennial Census
2011	20,663	Population Estimates Program
2012	20,378	Population Estimates Program
2013	20,123	Population Estimates Program
2014	19,990	Population Estimates Program
2015	19,772	Population Estimates Program
2016	19,536	Population Estimates Program
2017	19,411	Population Estimates Program
2018	19,093	Population Estimates Program
2019	18,919	Population Estimates Program
2020	19,323	Decennial Census
2021	18,978	Population Estimates Program
2022	18,790	Population Estimates Program
2023	18,705	Population Estimates Program
2024	18,512	Population Estimates Program

Population Estimates Program US Census Bureau Population Estimates Program (annual estimates)
Decennial Census US Census Bureau Decennial Census (actual count every 10 years)