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World Population Review
Madison County, Idaho Population 2021
Madison County, Idaho's estimated population is 41,199 with a growth rate of 1.59% in the past year according to the most recent United States census data. Madison County, Idaho is the 12th largest county in Idaho. The 2010 Population was 37,592 and has seen a growth of 9.60% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 41,199 | 646 | 1.59% |
| 2020 | 40,553 | 646 | 1.62% |
| 2019 | 39,907 | 646 | 1.65% |
| 2018 | 39,261 | -109 | -0.28% |
| 2017 | 39,370 | 398 | 1.02% |
| 2016 | 38,972 | 983 | 2.59% |
| 2015 | 37,989 | 89 | 0.23% |
| 2014 | 37,900 | 373 | 0.99% |
| 2013 | 37,527 | -135 | -0.36% |
| 2012 | 37,662 | -246 | -0.65% |
| 2011 | 37,908 | 316 | 0.84% |
| 2010 | 37,592 | 13,918 | 58.79% |
| 1990 | 23,674 | 4,194 | 21.53% |
| 1980 | 19,480 | 6,028 | 44.81% |
| 1970 | 13,452 | 4,035 | 42.85% |
| 1960 | 9,417 | 261 | 2.85% |
| 1950 | 9,156 | -30 | -0.33% |
| 1940 | 9,186 | 870 | 10.46% |
| 1930 | 8,316 | -851 | -9.28% |
| 1920 | 9,167 | 0.00% |
2021 Growth Rate
1.59%
County Website
State
Founded
February 18, 1913
County Seat
Lat./Long.
2010 Population
37,592
Growth Since 2010
9.60%
Madison County, Idaho Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 36,286 | 92.80% |
| Two or More Races | 1,146 | 2.93% |
| Some Other Race | 842 | 2.15% |
| Asian | 610 | 1.56% |
| Native Hawaiian and Other Pacific Islander | 94 | 0.24% |
| Black or African American | 65 | 0.17% |
| American Indian and Alaska Native | 57 | 0.15% |
Madison County, Idaho Population by Race
Madison County, Idaho Population Pyramid $2021
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Madison County, Idaho Population by Age
Madison County, Idaho Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 11,016 | 3.51 | 44.6 |
| Married | 8,482 | 3.52 | 47.6 |
| Non Family | 1,939 | 3.18 | 29.4 |
| Female | 407 | 4.09 | 45.2 |
| Male | 188 | 5.23 | 63.8 |
3.52
Average Family Size
3.51
Average Household Size
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Madison County, Idaho Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 242 | 1.48% |
| 9th to 12th Grade | 426 | 2.61% |
| High School Graduate | 2,485 | 15.20% |
| Some College | 4,445 | 27.19% |
| Associates Degree | 2,799 | 17.12% |
| Bachelors Degree | 4,103 | 25.10% |
| Graduate Degree | 1,845 | 11.29% |
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Madison County, Idaho Educational Attainment by Sex (over 25)
Madison County, Idaho Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 14,709 | 14,245 | 5,594 |
| Hispanic | 1,204 | 1,016 | 234 |
| Other Race | 483 | 401 | 68 |
| 2+ Races | 208 | 193 | 44 |
| Asian | 149 | 133 | 63 |
| Islander | 39 | 39 | 13 |
| Native American | 13 | 13 | |
| Black | 3 | 3 |
The highest rate of high school graduation is among black people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 42.28%.
Madison County, Idaho Educational Attainment by Race
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$25,488
Average Earnings
$36,785
Average Male
$18,233
Average Female
Madison County, Idaho Earnings by Educational Attainment
Madison County, Idaho Language by Age
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Madison County, Idaho Language
89.04% of Madison County, Idaho residents speak only English, while 10.96% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.72% of the population.
Madison County, Idaho Language
Madison County, Idaho Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 34,212 | 9,920 | 29.00% |
| Hispanic | 2,885 | 1,323 | 45.86% |
| Multiple | 1,134 | 653 | 57.58% |
| Other | 799 | 419 | 52.44% |
| Asian | 607 | 230 | 37.89% |
| Islander | 94 | 53 | 56.38% |
| Black | 55 | 43 | 78.18% |
30.86%
Overall Poverty Rate
28.63%
Male Poverty Rate
33.19%
Female Poverty Rate
Poverty in Madison County, Idaho
The race most likely to be in poverty in Madison County, Idaho is Black, with 78.18% below the poverty level.
The race least likely to be in poverty in Madison County, Idaho is White, with 29.00% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 8.77%. Among those working part-time, it was 44.43%, and for those that did not work, the poverty rate was 33.13%.
Madison County, Idaho Poverty
Madison County, Idaho Poverty Rate by Education
Madison County, Idaho Marital Status
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Marriage Rates
58.8%
Overall Marriage Rate
60.4%
Male Marriage Rate
57.2%
Female Marriage Rate
Madison County, Idaho Married by Age and Sex
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Madison County, Idaho Marriage
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.
Madison County, Idaho Marital Status by Race
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Madison County, Idaho Marital Status
Madison County, Idaho Veterans by War
Madison County, Idaho Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 856 | 3.23% |
| Hispanic | 47 | 2.38% |
| 2+ Races | 17 | 4.07% |
Madison County, Idaho Veterans by Race
Madison County, Idaho Veterans by Education
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5.97%
Veteran Poverty Rate
34.29%
Veteran Disability Rate
Madison County, Idaho Veterans by Education
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66.6%
Labor Force Participation
62.1%
Employment Rate
6.7%
Unemployment Rate
Madison County, Idaho Employment by Age
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Madison County, Idaho Employment by Race
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Madison County, Idaho Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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95.38%
Native Born
4.62%
Foreign Born
3.00%
Non Citizen
1.62%
Naturalized
Place of Birth
95.38% of Madison County, Idaho residents were born in the United States, with 44.17% having been born in Idaho. 3.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Madison County, Idaho Place of Birth
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990