Stephenson County Population 2018

Stephenson County's estimated population is 45,054 with a growth rate of -1.07% in the past year according to the most recent United States census data. Stephenson County is the 33rd largest county in Illinois.

Year Population Growth Growth Rate
201745,054-486-1.07%
201645,540-130-0.28%
201545,670-594-1.28%
201446,264-403-0.86%
201346,667-217-0.46%
201246,884-432-0.91%
201147,316-290-0.61%
201047,606-446-0.93%
199048,052-1,484-3.00%
198049,5366751.38%
197048,8612,6545.74%
196046,2074,61211.09%
195041,5959492.33%
194040,6465821.45%
193040,0642,3216.15%
192037,7439222.50%
191036,8211,8885.40%
190034,9333,59511.47%
189031,338-625-1.96%
188031,9631,3554.43%
187030,6085,49621.89%
186025,11213,446115.26%
185011,6668,866316.64%
18402,8000.00%

Stephenson County Population Growth

Population Data via

Stephenson County Race Data

Race Population Percentage
White39,65788.02%
Black or African American4,4519.88%
Two or More Races1,2412.75%
Asian3050.68%
American Indian and Alaska Native1180.26%
Native Hawaiian and Other Pacific Islander190.04%

Stephenson County Population Pyramid

0k1k1k2k Male Population0k1k1k2k 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