akashic
1876–2024
State Senate District 30·Idaho

Idaho 30th State Senate District has voted Republican in fifteen straight presidential cycles.

One of Idaho's most reliably Republican legislative districts

18762024·38 elections
ID
Latest
R+60
in 2024
Archetype
Republican loyalist
since the recent cycles
Population
52,340
2024 ACS

Idaho 30th State Senate District, Idaho: Republican loyalist district. In 2024, voted R+60%. Democratic peak: D+72 in 1896.

Key facts

2024 presidential margin
R+60MIT Election Lab
Political archetype
Republican loyalistAkashic typology
Population
52,3402024 5-year
Median household income
$76,6032024 5-year
White (non-Hispanic)
77.9%2024 5-year
Black
0.2%2024 5-year
Hispanic / Latino
17.2%2024 5-year
Peak Democratic margin
D+72 in 1896MIT Election Lab
Peak Republican margin
R+60 in 2024MIT Election Lab
2 counties · 0 D · 2 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−60.5%
4,06217,45322,134
R
−56.9%
4,31116,49421,408
R
−48.9%
3,08411,81917,852
R
−54.9%
4,07914,43918,886
R
−46.0%
4,74113,28418,562
R
−55.0%
3,92513,80917,968
R
−50.4%
3,66311,68015,922
R
−26.4%
4,8109,13116,369
R
−22.5%
3,9977,93417,491
R
−38.2%
4,86611,02816,146
R
−57.5%
3,49213,14316,798
R
−56.2%
3,35613,05417,249
R
−22.7%
5,0098,07713,511
R
−39.8%
2,8637,67312,099
R
−30.3%
3,5087,17412,119
D
+0.5%
6,0786,01212,090
R
−6.2%
5,8436,61312,456
R
−23.8%
4,0806,62610,706
R
−33.6%
3,4967,02910,530
D
+0.7%
3,6223,5737,293
D
+2.5%
3,8433,6537,506
D
+2.1%
4,2624,0848,358
D
+27.5%
4,7602,6667,621
D
+14.0%
4,3823,2897,788
R
−28.3%
2,0793,7285,831
R
−37.3%
8923,1015,926
R
−44.8%
1,5003,9385,438
D
+9.7%
2,3061,8854,348
R
−21.1%
8141,4402,973
R
−27.9%
1,7503,2775,470
R
−51.3%
8903,1864,475
D
+5.0%
1,6131,4573,106
D
+72.1%
1,2321941,440
O
−48.3%
09371,938
No data
No data
No data
No data

Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
22.2%
German
8.9%
American
8.1%
Irish
4.1%
Scottish
3.5%
French
1.2%
Italian
1.1%
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.
Language at home
Population aged 5 and older
85.8%
speak English only
Spanish12.2%
Other languages0.9%
Asian & Pacific Islander0.6%
Other Indo-European0.6%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Other Christian
50.4%
Catholic & Orthodox
2.2%
Mainline Protestant
1.0%
Methodist
0.8%
Pentecostal & Holiness
0.8%
Baptist
0.7%
Non-Christian
0.1%
Source · 2020 US Religion Census. Remaining 44.1% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin exceeding 60 points, this district ranks among the most one-sided in the state, reflecting a rural electorate where statewide Republican candidates consistently post their strongest showings.

The Republican margin in Idaho 30th State Senate District reached its widest at sixty points in 2024. The margin in 2024 was sixty points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $76,603, a 78% non-Hispanic-white share, and a population of 52,340 together describe a district whose political habits are deeply settled.

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.
State Senate District 30, Idaho. Akashic. https://akashic.app/sld-upper/16030/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State Senate District 30, Idaho vote in 2024?
In 2024, State Senate District 30, Idaho voted Republican by 60.5 points (R+60), carried by the Republican candidate. Out of 22,134 votes cast, 4,062 went Democratic and 17,453 went Republican.
What is State Senate District 30, Idaho's political archetype?
Akashic classifies State Senate District 30, Idaho as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 9 times, Republican 24 times, and other 1 times.
When did State Senate District 30, Idaho last vote Democratic?
The most recent presidential election in which State Senate District 30, Idaho voted Democratic was 1964.
How many people live in State Senate District 30, Idaho?
State Senate District 30, Idaho has a population of 52,340 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 30, Idaho?
Median household income in State Senate District 30, Idaho is $76,603 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of State Senate District 30, Idaho?
Akashic tracks 38 presidential elections in State Senate District 30, Idaho from 1876 to 2024. Of those, 9 went Democratic and 24 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.