Jefferson County Summary

Life in Jefferson County research summary. HomeSnacks has been researching the quality of life in Jefferson County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in Jefferson County:

  • The population in Jefferson County is 31,383.

  • The median home value in Jefferson County is $437,130.

  • The median income in Jefferson County is $77,491.

  • The median rent in Jefferson County is $971.

  • The unemployment rate in Jefferson County is 2.4%.

  • The poverty rate in Jefferson County is 8.9%.

  • The average high in Jefferson County is 64.2° and there are 25.7 inches of rainfall annually.

Cities & Towns in Jefferson County

List Of Cities & Towns in Jefferson County

Rigby, ID Population 5,097

Ririe, ID Population 802

Menan, ID Population 759

Mud Lake, ID Population 468

Roberts, ID Population 461

Lewisville, ID Population 451

Hamer, ID Population 38

Map Of Jefferson County

Jefferson County, ID Weather

  • The average high in Jefferson County is 64.2°.

  • There are 67.19 nice days each year.

  • Expect an average of 25.7 inches of rain each year with 15.8 inches of snow.

  • There is an average of 5:53 hours of sun each day in Jefferson County.

StatJefferson County
Mean High64.2
Nice Days67.19
Rainfall25.7
Snowfall15.8
Sunny_hours5:53
64.2°
Average High
25.7
Inches of Rain

Jefferson County Demographics

Population over time in Jefferson County

The current population in Jefferson County is 31,383. The population has increased 6.6% from 2019.

Year Population % Change
2022 30,427 4.1%
2021 29,238 2.5%
2020 28,534 -

Gender in Jefferson County

  • Jefferson County is 48.9% female with 15,331 female residents.

  • Jefferson County is 51.1% male with 16,051 male residents.

Female
48.9% (15,331)
Male
51.1% (16,051)
Gender Jefferson County ID USA
Female 48.9% 49.6% 50.4%
Male 51.1% 50.4% 49.6%

Race / Ethnicity in Jefferson County

Jefferson County is:

  • 85.9% White with 26,968 White residents.

  • 0.1% African American with 17 African American residents.

  • 0.8% American Indian with 244 American Indian residents.

  • 0.2% Asian with 74 Asian residents.

  • 0.0% Hawaiian with 2 Hawaiian residents.

  • 0.2% Other with 74 Other residents.

  • 2.0% Two Or More with 623 Two Or More residents.

  • 10.8% Hispanic with 3,381 Hispanic residents.

White
85.9% (26,968)
African American
0.1% (17)
American Indian
0.8% (244)
Asian
0.2% (74)
Hawaiian
0.0% (2)
Other
0.2% (74)
Two Or More
2.0% (623)
Hispanic
10.8% (3,381)

Table: Jefferson County By Race

Race Jefferson County ID USA
White 85.9% 80.1% 58.9%
African American 0.1% 0.6% 12.1%
American Indian 0.8% 0.9% 0.6%
Asian 0.2% 1.3% 5.7%
Hawaiian 0.0% 0.1% 0.2%
Other 0.2% 0.4% 0.4%
Two Or More 2.0% 3.5% 3.5%
Hispanic 10.8% 13.1% 18.7%

Household Income For Jefferson County, Idaho

  • 4.0% of households in Jefferson County earn Less than $10,000.

  • 2.0% of households in Jefferson County earn $10,000 to $14,999.

  • 5.7% of households in Jefferson County earn $15,000 to $24,999.

  • 6.9% of households in Jefferson County earn $25,000 to $34,999.

  • 8.0% of households in Jefferson County earn $35,000 to $49,999.

  • 22.0% of households in Jefferson County earn $50,000 to $74,999.

  • 18.1% of households in Jefferson County earn $75,000 to $99,999.

  • 21.3% of households in Jefferson County earn $100,000 to $149,999.

  • 5.7% of households in Jefferson County earn $150,000 to $199,999.

  • 6.3% of households in Jefferson County earn $200,000 or more.

Less than $10,000
4.0% (1,245)
$10,000 to $14,999
2.0% (622)
$15,000 to $24,999
5.7% (1,780)
$25,000 to $34,999
6.9% (2,178)
$35,000 to $49,999
8.0% (2,511)
$50,000 to $74,999
22.0% (6,894)
$75,000 to $99,999
18.1% (5,684)
$100,000 to $149,999
21.3% (6,695)
$150,000 to $199,999
5.7% (1,803)
$200,000 or more
6.3% (1,966)
Income Jefferson County ID USA
Less than $10,000 4.0% 3.7% 4.9%
$10,000 to $14,999 2.0% 3.3% 3.8%
$15,000 to $24,999 5.7% 7.2% 7.0%
$25,000 to $34,999 6.9% 7.9% 7.4%
$35,000 to $49,999 8.0% 12.0% 10.7%
$50,000 to $74,999 22.0% 19.2% 16.1%
$75,000 to $99,999 18.1% 14.9% 12.8%
$100,000 to $149,999 21.3% 17.4% 17.1%
$150,000 to $199,999 5.7% 7.1% 8.8%
$200,000 or more 6.3% 7.3% 11.4%

Highest level of educational attainment in Jefferson County for adults over 25

  • 3.0% of adults in Jefferson County completed < 9th grade.

  • 4.0% of adults in Jefferson County completed 9-12th grade.

  • 26.0% of adults in Jefferson County completed high school / ged.

  • 25.0% of adults in Jefferson County completed some college.

  • 15.0% of adults in Jefferson County completed associate's degree.

  • 18.0% of adults in Jefferson County completed bachelor's degree.

  • 7.0% of adults in Jefferson County completed master's degree.

  • 1.0% of adults in Jefferson County completed professional degree.

  • 1.0% of adults in Jefferson County completed doctorate degree.

< 9th Grade
3% (941)
9-12th Grade
4% (1,255)
High School / GED
26% (8,159)
Some College
25% (7,845)
Associate's Degree
15% (4,707)
Bachelor's Degree
18% (5,648)
Master's Degree
7% (2,196)
Professional Degree
1% (313)
Doctorate Degree
1% (313)
Education Jefferson County ID USA
< 9th Grade 3% 4% 3%
9-12th Grade 4% 5% 6%
High School / GED 26% 26% 26%
Some College 25% 25% 20%
Associate's Degree 15% 10% 9%
Bachelor's Degree 18% 20% 21%
Master's Degree 7% 7% 10%
Professional Degree 1% 2% 2%
Doctorate Degree 1% 1% 2%

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