Lewis County, Idaho: Evangelical Deep South county. In 2024, voted R+65%. Republican peak: R+65 in 2024.
Key facts
- 2024 presidential margin
- R+65MIT Election Lab
- Political typology
- Evangelical Deep SouthAkashic typology
- Population
- 3,6822024 5-year
- Median household income
- $51,6152024 5-year
- White (non-Hispanic)
- 82.8%2024 5-year
- Black
- 1.1%2024 5-year
- Hispanic / Latino
- 4.3%2024 5-year
- Peak Democratic margin
- D+52 in 1964MIT Election Lab
- Peak Republican margin
- R+65 in 2024MIT Election Lab
- Most similar
- Lincoln County, MT · similarity 1.00
2024 results by precinct
2024 precinct map of Lewis CountyPrecinct-level 2024 presidential results for Lewis County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | No data |
| 1896 | No data |
| 1900 | No data |
| 1904 | No data |
| 1908 | No data |
| 1912 | +27.1% |
| 1916 | +15.4% |
| 1920 | −17.4% |
| 1924 | −2.4% |
| 1928 | −18.0% |
| 1932 | +44.1% |
| 1936 | +51.0% |
| 1940 | +33.3% |
| 1944 | +35.0% |
| 1948 | +41.8% |
| 1952 | +11.9% |
| 1956 | +21.6% |
| 1960 | +29.4% |
| 1964 | +52.3% |
| 1968 | +12.8% |
| 1972 | −19.3% |
| 1976 | +4.2% |
| 1980 | −15.3% |
| 1984 | −21.1% |
| 1988 | +1.3% |
| 1992 | +4.6% |
| 1996 | −9.9% |
| 2000 | −56.9% |
| 2004 | −50.5% |
| 2008 | −44.1% |
| 2012 | −48.1% |
| 2016 | −58.6% |
| 2020 | −61.0% |
| 2024 | −64.8% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 306 | 1,503 | 1,847 | ||
| R | 349 | 1,489 | 1,870 | ||
| R | 270 | 1,202 | 1,590 | ||
| R | 396 | 1,173 | 1,614 | ||
| R | 479 | 1,275 | 1,804 | ||
| R | 440 | 1,359 | 1,820 | ||
| R | 335 | 1,295 | 1,688 | ||
| R | 674 | 861 | 1,880 | ||
| D | 674 | 593 | 1,778 | ||
| D | 807 | 786 | 1,612 | ||
| R | 648 | 1,000 | 1,666 | ||
| R | 774 | 1,088 | 2,053 | ||
| D | 898 | 824 | 1,768 | ||
| R | 635 | 961 | 1,687 | ||
| D | 927 | 697 | 1,801 | ||
| D | 1,557 | 487 | 2,044 | ||
| D | 1,432 | 781 | 2,213 | ||
| D | 1,292 | 833 | 2,125 | ||
| D | 1,276 | 1,004 | 2,280 | ||
| D | 1,224 | 487 | 1,763 | ||
| D | 1,222 | 589 | 1,811 | ||
| D | 1,462 | 729 | 2,198 | ||
| D | 1,612 | 507 | 2,168 | ||
| D | 1,390 | 526 | 1,957 | ||
| R | 793 | 1,146 | 1,964 | ||
| O | 601 | 650 | 2,004 | ||
| R | 712 | 1,013 | 1,732 | ||
| D | 1,255 | 901 | 2,294 | ||
| D | 1,131 | 436 | 2,569 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
22.1%
Irish
15.6%
English
13.6%
Scottish
4.7%
Italian
3.5%
American
3.3%
Polish
1.6%
African American
0.9%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 49.0 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$51,615
Lewis County ranks in the bottom 25% of US counties.
Lewis County$51,615
Idaho$77,800
United States$80,734
Lewis County ranks in the bottom 25% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
15.3%
Children face moderate poverty.
Children under 1817.6%
Working age (18–64)13.7%
Seniors (65+)20.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
96.2%
speak English only
Spanish2.1%
Other languages0.7%
Asian & Pacific Islander0.6%
Other Indo-European0.3%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 47.3% of residents not counted as adherents by any reporting body.
Lewis County's roughly 3,700 residents are spread across rolling Camas Prairie farmland, and its electorate has tilted Republican by double digits for decades — reaching a 65-point margin in 2024.
The Republican margin here reached its widest at sixty-five points in 2024. Between 2020 and 2024 the county moved four points toward the Republican candidate; the 2024 margin was sixty-five points.
A median household income of $51,615, a 15% poverty rate, and a 83% non-Hispanic-white share describe the county. The county's voting pattern over the last decade is most similar to that of Lincoln County and Clearwater County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Lewis County, Idaho. Akashic. https://akashic.app/county/16061/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Lewis County, Idaho vote in 2024?
In 2024, Lewis County, Idaho voted Republican by 64.8 points (R+65), carried by the Republican candidate. Out of 1,847 votes cast, 306 went Democratic and 1,503 went Republican.
What is Lewis County, Idaho's political typology?
Akashic places Lewis County, Idaho in the "Evangelical Deep South" typology — Deeply Republican, heavily Baptist counties of the Deep South. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 15 times, Republican 13 times, and other 1 times.
When did Lewis County, Idaho last vote Democratic?
The most recent presidential election in which Lewis County, Idaho voted Democratic was 1992.
How many people live in Lewis County, Idaho?
Lewis County, Idaho has a population of 3,682 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Lewis County, Idaho?
Median household income in Lewis County, Idaho is $51,615 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Lewis County, Idaho?
Akashic tracks 38 presidential elections in Lewis County, Idaho from 1876 to 2024. Of those, 15 went Democratic and 13 went Republican. The county's typology — "Evangelical Deep South" — captures where that record, its demographics, and its recent swing place it among American communities.