O Brien County, IA population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of O Brien County decreased by 1,024. In this period, the peak population was 15,036 in the year 2000. The numbers suggest that the population has already reached its peak and is showing a trend of decline.
| Year | Population | Year on Year Change | Change in Percent |
|---|---|---|---|
| 2000 | 15,036 | - | - |
| 2001 | 14,874 | -162 | -1.08% |
| 2002 | 14,689 | -185 | -1.24% |
| 2003 | 14,597 | -92 | -0.63% |
| 2004 | 14,361 | -236 | -1.62% |
| 2005 | 14,300 | -61 | -0.42% |
| 2006 | 14,244 | -56 | -0.39% |
| 2007 | 14,089 | -155 | -1.09% |
| 2008 | 13,940 | -149 | -1.06% |
| 2009 | 14,002 | 62 | 0.44% |
| 2010 | 14,405 | 403 | 2.88% |
| 2011 | 14,217 | -188 | -1.31% |
| 2012 | 14,154 | -63 | -0.44% |
| 2013 | 14,046 | -108 | -0.76% |
| 2014 | 14,045 | -1 | -0.01% |
| 2015 | 13,927 | -118 | -0.84% |
| 2016 | 13,921 | -6 | -0.04% |
| 2017 | 13,777 | -144 | -1.03% |
| 2018 | 13,806 | 29 | 0.21% |
| 2019 | 13,796 | -10 | -0.07% |
| 2020 | 14,150 | 354 | 2.57% |
| 2021 | 14,044 | -106 | -0.75% |
| 2022 | 14,085 | 41 | 0.29% |
| 2023 | 14,012 | -73 | -0.52% |
TABLE OF CONTENTS
O Brien County, IA population from 2000 to 2023
From 2000 to 2010, O Brien County's population decreased by 631 (4.20%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 9.63%.
From 2010 to 2020, O Brien County's population decreased by 255 (1.77%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.18% .
After the COVID19 pandemic and, between the year 2020 and 2023, O Brien County's population decreased by 138 (0.98%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
O Brien County's population from 2000 to 2023.
The estimated population at the end of 2023 was 14,012.
Between the year 2000 and 2023, O Brien County's population peaked in year 2000 at 15,036.
Between the year 2000 and 2023, O Brien County's population was lowest in year 2017 at 13,777.
O Brien County, IA annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of O Brien County grew year by year for 5 years and declined for 18 years.
From 2000 to 2023, O Brien County had an average annual population growth rate of 0.30% per year. Overall the population shrank 6.81% between 2000 and 2023.
FIGURE 2
O Brien County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.30% per year.
From 2009 to 2010 O Brien County population grew the most, with an increase of 403 people (a 2.88% year-on-year increase)..
From 2003 to 2004 O Brien County population experienced the most significant decrease, with a decline of 236 people (a 1.62% year-on-year decline).
Things to know
Is O Brien County, IA population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, O Brien County's population decreased by 32 between 2021 and 2023. The increase was 41 (decreased) between 2021 and 2022; and decrease of 73 (0.52%) between 2022 and 2023.
How has the population of O Brien County, IA changed in the last 10 years?
Between 2013 and 2023, population of O Brien County decreased by 34 (0.24%). The population was highest at 14,150 in the year 2020 and lowest at 13,777 in the year 2017. Overall the average growth rate witnessed for the last 10 years was -0.02%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)