Larimer County Population 2018

Larimer County's estimated population is 343,976 with a growth rate of 1.61% in the past year according to the most recent United States census data. Larimer County is the 6th largest county in Colorado.

Year Population Growth Growth Rate
2017343,9765,4451.61%
2016338,5315,6911.71%
2015332,8409,1672.83%
2014323,6737,8142.47%
2013315,8595,3381.72%
2012310,5215,4941.80%
2011305,0274,6001.53%
2010300,427114,29161.40%
1990186,13636,95224.77%
1980149,18459,28465.94%
197089,90036,55768.53%
196053,3439,78922.48%
195043,5548,01522.55%
194035,5392,4027.25%
193033,1375,26518.89%
192027,8722,60210.30%
191025,27013,102107.68%
190012,1682,45625.29%
18909,7124,82098.53%
18804,8924,054483.77%
18708380.00%

Larimer County Population Growth

Population Data via

Larimer County Race Data

Race Population Percentage
White310,89390.38%
Two or More Races8,1652.37%
Asian7,6182.21%
Black or African American3,5591.03%
American Indian and Alaska Native3,3230.97%
Native Hawaiian and Other Pacific Islander3110.09%

Larimer County Population Pyramid

0k5k10k15k20k Male Population0k5k10k15k20k 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