Idaho Falls-Rexburg-Blackfoot, ID · how this place’s counties split between candidates in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain and there is no roll-up above it. Each cell counts how many of this place’s counties a candidate led — a count of records, not a vote total. Who led the place as a whole is not knowable from these returns, because county rows carry a leader and a lead but no per-candidate votes.
Presidential nominating contests in Idaho Falls-Rexburg-Blackfoot, ID, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+61.1
vs
Presidential vote · 2024R+56.0
Registration leans Republican; the presidential vote runs 5.1 points more Democratic than the rolls.
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Idaho Falls-Rexburg-Blackfoot, ID
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018
111,452
6,743
71,535
32,042
1,132
2020
130,354
9,903
83,725
35,083
1,643
2022
125,915
8,991
85,305
29,906
1,713
2024
132,238
9,501
90,334
30,545
1,858
domestic migration
Who moves in and out
Net domestic migration over time
+476 net domestic migration · 2025
20112025
Net +4,039 over 2011–2025 · gain loss
Domestic migration in Idaho Falls-Rexburg-Blackfoot, ID in Idaho Falls-Rexburg-Blackfoot, ID: net domestic migration by year
Year
Net domestic migration
2011
−1,614
2012
−2,460
2013
−2,716
2014
−1,683
2015
−1,596
2016
+1,277
2017
+1,523
2018
+558
2019
+1,780
2021
+4,822
2022
+2,823
2023
+174
2024
+675
2025
+476
Idaho Falls-Rexburg-Blackfoot, ID sits in the Northern Rockies. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 78.9 points in 1896 and a Republican high of 67.2 points in 1984. Between 2020 and 2024 the region moved 1.7 points toward the Republican candidate; the 2024 margin was 56.0 points.
A population of 283,586, a 81% non-Hispanic-white share, and a median household income of $75,547 describe the region. The region's voting pattern over the last decade is most similar to that of Amarillo-Borger, TX and Abilene-Sweetwater, TX.
Akashic
Political twins — combined metros
The combined metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
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.
Idaho Falls-Rexburg-Blackfoot, ID. Akashic. https://akashic.app/csa/292/. Accessed May 20, 2026. License: CC BY 4.0.
How did Idaho Falls-Rexburg-Blackfoot, ID vote in 2024?
In 2024, Idaho Falls-Rexburg-Blackfoot, ID voted Republican by 56.0 points (R+56.0), carried by the Republican candidate. Out of 118,567 votes cast, 24,133 went Democratic and 90,560 went Republican.
When did Idaho Falls-Rexburg-Blackfoot, ID last vote Democratic?
The most recent presidential election in which Idaho Falls-Rexburg-Blackfoot, ID voted Democratic was 1948.
How many people live in Idaho Falls-Rexburg-Blackfoot, ID?
Idaho Falls-Rexburg-Blackfoot, ID has a population of 283,586 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Idaho Falls-Rexburg-Blackfoot, ID?
Median household income in Idaho Falls-Rexburg-Blackfoot, ID is $75,547 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Idaho Falls-Rexburg-Blackfoot, ID?
Akashic tracks 34 presidential elections in Idaho Falls-Rexburg-Blackfoot, ID from 1892 to 2024. Of those, 8 went Democratic and 25 went Republican.
