Jefferson

County in Idaho

County

The population development of Jefferson.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Jefferson	County	16,543	19,155	26,140	30,891	34,854	→
Idaho	State	1,006,749	1,293,953	1,567,582	1,839,140	2,001,619

Contents: Incorporated Places

The population development of the incorporated places in Jefferson.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	County	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Lewisville	City	Jefferson	471	457	451	416	446	→
Menan	City	Jefferson	636	703	750	715	734	→
Mud Lake	City	Jefferson	184	280	358	315	359	→
Rigby	City	Jefferson	2,916	3,047	3,939	5,042	5,683	→
Ririe	City	Jefferson / Bonneville	596	601	662	664	715	→
Roberts	City	Jefferson	559	667	601	500	583	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	15,580
Females	15,311

Age Groups (C 2020)
0-17 years	10,519
18-64 years	16,641
65+ years	3,731

Age Distribution (C 2020)
80+ years	701
70-79 years	1,618
60-69 years	3,131
50-59 years	3,044
40-49 years	3,812
30-39 years	3,854
20-29 years	3,279
10-19 years	6,032
0-9 years	5,420

Urbanization (C 2020)
Rural	20,608
Urban	10,283

»Race« (C 2020)
White	27,092
Black/African American	86
Indigenous	204
Asian	124
Pacific Islander	34
Some other	1,732
2 or more	1,619

Ethnicity (C 2020)
Hispanic or Latino	3,256
Other	27,635