Population: compare countries

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Annual, Persons

Source: World Bank

Population: latest observations by country
Date	Zambia	United States	Romania
Dec 31, 2002	10,647,949	287,625,193	21,730,496
Dec 31, 2003	10,983,595	290,107,933	21,574,326
Dec 31, 2004	11,338,198	292,805,298	21,451,748
Dec 31, 2005	11,718,819	295,516,599	21,319,685
Dec 31, 2006	12,129,553	298,379,912	21,193,760
Dec 31, 2007	12,565,085	301,231,207	20,882,982
Dec 31, 2008	13,021,324	304,093,966	20,537,875
Dec 31, 2009	13,490,389	306,771,529	20,367,487
Dec 31, 2010	13,965,594	309,378,227	20,246,871
Dec 31, 2011	14,437,796	311,839,461	20,147,528
Dec 31, 2012	14,913,629	314,339,099	20,058,035
Dec 31, 2013	15,398,997	316,726,282	19,983,693
Dec 31, 2014	15,895,315	319,257,560	19,908,979
Dec 31, 2015	16,399,089	321,815,121	19,815,616
Dec 31, 2016	16,914,423	324,353,340	19,702,267
Dec 31, 2017	17,441,320	326,608,609	19,588,715
Dec 31, 2018	17,973,569	328,529,577	19,473,970
Dec 31, 2019	18,513,839	330,226,227	19,371,648
Dec 31, 2020	19,059,395	331,578,104	19,265,250
Dec 31, 2021	19,603,607	332,100,166	19,122,059
Dec 31, 2022	20,152,938	333,996,304	19,048,502
Dec 31, 2023	20,723,965	336,755,052	19,061,062
Dec 31, 2024	21,314,956	340,003,797	19,051,804
Dec 31, 2025	21,913,874	341,784,857	19,020,271