San Diego City and County Population
from
U.S. Census Bureau

Year	San Diego City	San Diego County	California
1850	650	798§	92,597
1860	731	4,324*	379,994
1870	2,300	4,951*	560,247
1880	2,637	8,618*	864,694
1887	30,000¤	[the great boom]
1890	16,159	34,987*	1,213,398
1900	17,700	35,090*	1,485,053
1910	39,578	61,665	2,377,549
1920	74,361	112,248	3,426,861
1930	147,995	209,659	5,677,251
1940	203,341	289,348	6,907,387
1950	333,865	556,808	10,586,223
1960	573,224	1,033,011	15,717,204
1970	696,769	1,357,854	19,971,069
1980	875,538	1,861,846	23,667,764
1990	1,110,549	2,498,016	29,760,021
2000	1,223,400	2,813,833	33,871,648

• Source: U.S. Bureau of the Census or Census QuickFacts
• ^§ Transcription of 1850 San Diego County census, courtesy of Genweb
  ftp://ftp.rootsweb.com/pub/usgenweb/ca/sandiego/census/indx1850.txt
• * San Diego County census counts prior to 1910 are not comparable, because the County had a larger area. Most of Riverside County was included until 1893, and Imperial County was included until 1907.
• ^¤1887 population is an unofficial estimate at the peak of San Diego's boom. According to Theodore S. Van Dyke, San Diego's population was probably 5,000 in 1885 and 30,000 in 1887. Other estimates range up to 40,000 population in early 1887.
• See also population data from Richard Pourade series.