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
202141,1996461.59%
202040,5536461.62%
201939,9076461.65%
201839,261-109-0.28%
201739,3703981.02%
201638,9729832.59%
201537,989890.23%
201437,9003730.99%
201337,527-135-0.36%
201237,662-246-0.65%
201137,9083160.84%
201037,59213,91858.79%
199023,6744,19421.53%
198019,4806,02844.81%
197013,4524,03542.85%
19609,4172612.85%
19509,156-30-0.33%
19409,18687010.46%
19308,316-851-9.28%
19209,1670.00%
2021 Growth Rate
1.59%
County Website
State
Founded
February 18, 1913
County Seat
2010 Population
37,592
Growth Since 2010
9.60%
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Madison County, Idaho Population Growth

Population by Race

Race Population Percentage
White36,28692.80%
Two or More Races1,1462.93%
Some Other Race8422.15%
Asian6101.56%
Native Hawaiian and Other Pacific Islander940.24%
Black or African American650.17%
American Indian and Alaska Native570.15%
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Madison County, Idaho Population by Race

Madison County, Idaho Population Pyramid $2021

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Madison County, Idaho Median Age

23.5


Total

24


Male

22.7


Female

Madison County, Idaho Adults

There are 28,421 adults, (2,590 of whom are seniors) in Madison County, Idaho.

Madison County, Idaho Age Dependency

51.4

Age Dependency Ratio

10

Old Age Dependency Ratio

41.3

Child Dependency Ratio

Madison County, Idaho Sex Ratio

Female

19,219

49.15%

Male

19,881

50.85%

Madison County, Idaho Population by Age

Madison County, Idaho Renter vs Owner Occupied by Household Type

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Madison County, Idaho Household Types

Type Owner Renter
Male63.8%36.2%
Married47.6%52.4%
Female45.2%54.8%
All44.6%55.4%
Non Family29.4%70.6%

44.6%

Rate of Home Ownership

Madison County, Idaho Households and Families

Type Count Average Size Owned
All11,0163.5144.6
Married8,4823.5247.6
Non Family1,9393.1829.4
Female4074.0945.2
Male1885.2363.8

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 Grade2421.48%
9th to 12th Grade4262.61%
High School Graduate2,48515.20%
Some College4,44527.19%
Associates Degree2,79917.12%
Bachelors Degree4,10325.10%
Graduate Degree1,84511.29%
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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
White14,70914,2455,594
Hispanic1,2041,016234
Other Race48340168
2+ Races20819344
Asian14913363
Islander393913
Native American1313
Black33

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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Name Average Male Female
Overall$25,488$36,785$18,233
Less Than 9th Grade$21,628$30,702$20,412
High School Graduate$26,736$32,554$24,006
Some College$20,780$24,975$16,879
Bachelors Degree$21,243$32,636$14,209
Graduate Degree$78,871$92,051$47,361

$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
White34,2129,92029.00%
Hispanic2,8851,32345.86%
Multiple1,13465357.58%
Other79941952.44%
Asian60723037.89%
Islander945356.38%
Black554378.18%

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

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Name Poverty
Less Than 9th Grade29.27%
Some College24.60%
High School11.95%
Bachelors or Greater11.20%

Madison County, Idaho Poverty Rate by Education

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Rate Poverty
Male Unemployed68.86%
Female Unemployed48.36%
Female Employed29.15%
Male Employed27.83%

Madison County, Idaho Poverty Rate by Employment Status and Sex

Madison County, Idaho Income by Household Type

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Name Median Mean
Households$39,160$54,512
Families$42,416$58,415
Married Families$42,523-
Non Families$27,428$32,874
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Income by Household Type

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

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873

Number of Veterans

837

Male Veterans

36

Female Veterans

War Veterans
Vietnam433
Second Gulf War135
First Gulf War127
Korea82
World War II49

Madison County, Idaho Veterans by War

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Age Group Veterans
65 to 74335
75+205
55 to 64165
18 to 34127
35 to 5441

Madison County, Idaho Veterans by Age

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Name Veterans % of Total
White8563.23%
Hispanic472.38%
2+ Races174.07%

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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44.17%

Born in Madison County, Idaho

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

  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

Sources