Grundy County Population 2018

Grundy County's estimated population is 12,333 with a growth rate of 0.29% in the past year according to the most recent United States census data. Grundy County is the 62nd largest county in Iowa.

Year Population Growth Growth Rate
201712,333360.29%
201612,297-109-0.88%
201512,406140.11%
201412,392490.40%
201312,343-97-0.78%
201212,440-39-0.31%
201112,479140.11%
201012,4654363.62%
199012,029-2,337-16.27%
198014,3662471.75%
197014,119-13-0.09%
196014,1324102.99%
195013,7222041.51%
194013,518-615-4.35%
193014,133-287-1.99%
192014,4208466.23%
191013,574-183-1.33%
190013,7575424.10%
189013,2155764.56%
188012,6396,24097.52%
18706,3995,606706.94%
18607930.00%

Grundy County Population Growth

Population Data via

Grundy County Race Data

Race Population Percentage
White12,18898.82%
Two or More Races1180.96%
Black or African American480.39%
Asian420.34%
American Indian and Alaska Native100.08%
Native Hawaiian and Other Pacific Islander70.06%

Grundy County Population Pyramid

0k0k0k0k0k1k Male Population0k0k0k0k0k1k 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