San Diego County Population 2018

San Diego County's estimated population is 3,317,749 with a growth rate of 0.84% in the past year according to the most recent United States census data. San Diego County is the 2nd largest county in California.

Year Population Growth Growth Rate
20163,317,74927,5040.84%
20153,290,24531,3890.96%
20143,258,85640,4371.26%
20133,218,41936,9061.16%
20123,181,51340,8211.30%
20113,140,69236,3461.17%
20103,104,346606,33024.27%
19902,498,016636,17034.17%
19801,861,846503,99237.12%
19701,357,854324,84331.45%
19601,033,011476,20385.52%
1950556,808267,46092.44%
1940289,34879,68938.01%
1930209,65997,41186.78%
1920112,24850,58382.03%
191061,66526,57575.73%
190035,0901030.29%
189034,98726,369305.98%
18808,6183,66774.07%
18704,95162714.50%
18604,3243,526441.85%
18507980.00%

San Diego County Population Growth

Population Data via

San Diego County Race Data

Race Population Percentage
White2,505,51875.52%
Asian396,75811.96%
Black or African American182,3135.50%
Two or More Races142,7404.30%
American Indian and Alaska Native43,3971.31%
Native Hawaiian and Other Pacific Islander19,5190.59%

San Diego County Population Pyramid

0k50k100k150k Male Population0k50k100k150k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990