A region's economy thrives or dives because of the people who choose to live there. That choice may occur by being born there and desiring to stay, or a more deliberate one of choosing to relocate from somewhere else. Monitoring change in the size and movement of population is an important barometer of well-being.
| Population Over Time | |||||
| 2000 | 2010 | 2017 | 2020 | 2023 | |
| Total Population | 20,385 | 20,955 | 20,441 | 19,812 | 19,910 |
| Change Since 2000 | 570 | 56 | -573 | -475 | |
| Pct. Change Since 2000 | 2.8% | 0.3% | -2.8% | -2.3% | |
| Components of Population Change 2022 to 2023 | ||
| Number | ||
| Net Domestic Migration | 137 | |
| International Migration | 9 | |
| Natural Increase (births minus deaths) | -83 | |
| Births | 187 | |
| Deaths | 270 | |
| Population Estimates by Age in 2022 | ||
| Number | Pct. Dist | |
| Preschool (0 to 4) | 1,066 | 5.4% |
| School Age (5 to 17) | 3,235 | 16.3% |
| College Age (18 to 24) | 1,469 | 7.4% |
| Young Adult (25 to 44) | 4,508 | 22.7% |
| Older Adult (45 to 64) | 5,519 | 27.8% |
| Older (65 plus) | 4,170 | 21.0% |
| Population Estimates by Race and Hispanic Origin in 2022 | ||
| Number | Pct. Dist | |
| American Ind. or Alaskan Native Alone | 75 | 0.4% |
| Asian Alone | 75 | 0.4% |
| Black Alone | 200 | 1.0% |
| Native Hawaiian and Other Pac. Isl. Alone | 1 | 0.0% |
| White Alone | 19,355 | 97.5% |
| Two or More Race Groups | 261 | 1.3% |
| Hispanic or Latino | ||
| Non-Hispanic or Latino | 19,275 | 97.1% |
| Hispanic or Latino | 692 | 3.5% |
| Households in 2022 | ||
| Number | Pct. Dist | |
| Total Households | 7,858 | 100.0% |
| Family Households | 5,328 | 67.8% |
| Married with Children | 1,482 | 18.9% |
| Married without Children | 2,957 | 37.6% |
| Single Parents | 429 | 5.5% |
| Other | 460 | 5.9% |
| Non-family Households | 2,530 | 32.2% |
| Living Alone | 2,157 | 27.4% |
| Average Household Size | 2.53 | |
| Average Family Household Size | 3.73 | |
| Population Counts by Decade | |||
| Population | Numerical Chg. | Pct. Chg. | |
| 1950 | 16,174 | NA | NA |
| 1960 | 16,074 | -100 | -0.6% |
| 1970 | 17,134 | 1,060 | 6.6% |
| 1980 | 19,361 | 2,227 | 13.0% |
| 1990 | 19,490 | 129 | 0.7% |
| 2000 | 20,385 | 895 | 4.6% |
| 2010 | 20,955 | 570 | 2.8% |
| 2020 | 19,812 | -1,143 | -5.5% |
| Population Projections | |||||
| 2010 | 2015 | 2020 | 2025 | 2030 | |
| Population Projections | 20,952 | 20,727 | 20,564 | 20,517 | 20,236 |
| Change Since 2010 | -225 | -388 | -435 | -716 | |
| Pct. Change Since 2010 | -1.1% | -1.9% | -2.1% | -3.4% | |