Jefferson County, Iowa's estimated 2024 population is 15,212 with a growth rate of -1.48% in the past year according to the most recent United States census data. Jefferson County, Iowa is the 49th largest county in Iowa. The 2010 population was 16,835 and has seen a growth of -9.64% since that time.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 14,072 | -228 | -1.59% |
| 2028 | 14,300 | -228 | -1.57% |
| 2027 | 14,528 | -228 | -1.55% |
| 2026 | 14,756 | -228 | -1.52% |
| 2025 | 14,984 | -228 | -1.5% |
| 2024 | 15,212 | -228 | -1.48% |
| 2023 | 15,440 | -228 | -1.46% |
| 2022 | 15,668 | -113 | -0.72% |
| 2021 | 15,781 | 87 | 0.55% |
| 2020 | 15,694 | -2,486 | -13.67% |
| 2019 | 18,180 | 78 | 0.43% |
| 2018 | 18,102 | -6 | -0.03% |
| 2017 | 18,108 | 81 | 0.45% |
| 2016 | 18,027 | 114 | 0.64% |
| 2015 | 17,913 | 118 | 0.66% |
| 2014 | 17,795 | 163 | 0.92% |
| 2013 | 17,632 | 351 | 2.03% |
| 2012 | 17,281 | 182 | 1.06% |
| 2011 | 17,099 | 264 | 1.57% |
| 2010 | 16,835 | 0 | 0% |
| 1990 | 16,310 | -6 | -0.04% |
| 1980 | 16,316 | 542 | 3.44% |
| 1970 | 15,774 | -44 | -0.28% |
| 1960 | 15,818 | 122 | 0.78% |
| 1950 | 15,696 | -66 | -0.42% |
| 1940 | 15,762 | -479 | -2.95% |
| 1930 | 16,241 | -199 | -1.21% |
| 1920 | 16,440 | 489 | 3.07% |
| 1910 | 15,951 | -1,486 | -8.52% |
| 1900 | 17,437 | 2,253 | 14.84% |
| 1890 | 15,184 | -2,285 | -13.08% |
| 1880 | 17,469 | -370 | -2.07% |
| 1870 | 17,839 | 2,801 | 18.63% |
| 1860 | 15,038 | 5,134 | 51.84% |
| 1850 | 9,904 | 7,131 | 257.16% |
| 1840 | 2,773 | -11,299 | -80.29% |
Race | Population | Percentage (of total) |
|---|---|---|
| White | 13,514 | 85.61% |
| Asian | 931 | 5.9% |
| Black or African American | 761 | 4.82% |
| Two or more races | 395 | 2.5% |
| Native American | 124 | 0.79% |
| Other race | 60 | 0.38% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Asian
Black or African American
Two or more races
Native American
Other race
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 6,826 | 2.17 | 65.4 | 34.6 |
| Non Family | 3,028 | 1.24 | 51.4 | 48.6 |
| Married | 2,895 | 2.79 | 81.7 | 18.3 |
| Female | 499 | 3.76 | 61.5 | 38.5 |
| Male | 404 | 2.74 | 58.7 | 41.3 |
2.79
Average Family Size
2.17
Average Household Size
65.4%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 471 | 3.92% |
| Associates Degree | 1,335 | 11.1% |
| Bachelors Degree | 2,716 | 22.59% |
| Graduate Degree | 2,032 | 16.9% |
| High School Graduate | 2,866 | 23.84% |
| Less Than 9th Grade | 332 | 2.76% |
| Some College | 2,271 | 18.89% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 10,167 | 9,440 | 3,618 |
| Asian | 773 | 726 | 571 |
| Black | 616 | 615 | 314 |
| 2+ Races | 309 | 302 | 147 |
| Hispanic | 136 | 121 | 68 |
| Native American | 52 | 46 | 34 |
| Other Race | 37 | 37 | 35 |
The highest rate of high school graduation is among other race people with a rate of 100%.
The highest rate of bachelors degrees is among other race people with a rate of 94.59%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $38,182 | $39,116 | $35,074 |
| Graduate Degree | $33,961 | $36,116 | $32,714 |
| High School Graduate | $42,047 | $45,722 | $31,417 |
| Less Than 9th Grade | $22,743 | $0 | $21,383 |
| Overall | $33,233 | $38,097 | $27,554 |
| Some College | $27,663 | $34,007 | $25,497 |
$33,233
Average Earnings
$38,097
Average Male
$27,554
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
86.46% of Jefferson County, Iowa residents speak only English, while 13.54% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 4.34% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 12,590 | 1,494 | 11.87% |
| Asian | 822 | 317 | 38.56% |
| Hispanic | 534 | 165 | 30.9% |
| Black | 592 | 94 | 15.88% |
| Native | 118 | 92 | 77.97% |
| Multiple | 315 | 4 | 1.27% |
13.97%
Overall Poverty Rate
13.75%
Male Poverty Rate
14.2%
Female Poverty Rate
The race most likely to be in poverty in Jefferson County, Iowa is Native, with 77.97% below the poverty level.
The race least likely to be in poverty in Jefferson County, Iowa is Multiple, with 1.27% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.33%. Among those working part-time, it was 17.7%, and for those that did not work, the poverty rate was 24.2%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 27.77% |
| Bachelors or Greater | 15.03% |
| Some College | 14.33% |
| High School | 8.1% |
rate
Rate | Poverty |
|---|---|
| Female Unemployed | 40% |
| Male Unemployed | 23.55% |
| Female Employed | 10.7% |
| Male Employed | 4.99% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $68,298 | $103,418 |
| Households | $52,210 | $80,266 |
| Married Families | $79,583 | $-999,999,999 |
| Non Families | $29,693 | $49,172 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
45.2%
Overall Marriage Rate
41.6%
Male Marriage Rate
49.2%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
1,122
Number of Veterans
1,011
Male Veterans
111
Female Veterans
War | Veterans |
|---|---|
| Second Gulf War | 303 |
| First Gulf War | 276 |
| Vietnam | 186 |
| Korea | 73 |
| World War II | 19 |
count
Age Group | Veterans |
|---|---|
| 35 to 54 | 513 |
| 75+ | 267 |
| 65 to 74 | 204 |
| 55 to 64 | 96 |
| 18 to 34 | 42 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 940 | 8.33% |
| Black | 158 | 24.69% |
| 2+ Races | 24 | 6.9% |
| Hispanic | 18 | 4.71% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.13%
Veteran Poverty Rate
22.67%
Veteran Disability Rate
LaborForceParticipation
59.7%
Labor Force Participation
56.6%
Employment Rate
5.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
56.26%
Born in Jefferson County, Iowa
88.08%
Native Born
11.92%
Foreign Born
9.16%
Non Citizen
2.76%
Naturalized
88.08% of Jefferson County, Iowa residents were born in the United States, with 56.26% having been born in Iowa. 9.16% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.