---
type: Jurisdiction
title: "Gallatin County, MT"
classification: county
fips: "30031"
state: "MT"
demographics:
  population: 124074
  population_under_18: 23305
  population_18_64: 83904
  population_65_plus: 16865
  median_household_income: 93528
  poverty_rate: 9.52
  homeownership_rate: 61.06
  unemployment_rate: 2.31
  median_home_value: 667600
  gini_index: 0.4764
  vacancy_rate: 11.04
  race_white: 110173
  race_black: 555
  race_asian: 1560
  race_native: 755
  hispanic: 6658
  bachelors_plus: 60419
districts:
  - to: "us/states/mt/districts/01"
    rel: in-district
    area_weight: 0.9977
  - to: "us/states/mt/districts/senate/30"
    rel: in-district
    area_weight: 0.4873
  - to: "us/states/mt/districts/senate/33"
    rel: in-district
    area_weight: 0.1641
  - to: "us/states/mt/districts/senate/29"
    rel: in-district
    area_weight: 0.1326
  - to: "us/states/mt/districts/senate/34"
    rel: in-district
    area_weight: 0.0825
  - to: "us/states/mt/districts/senate/39"
    rel: in-district
    area_weight: 0.0783
  - to: "us/states/mt/districts/senate/35"
    rel: in-district
    area_weight: 0.0417
  - to: "us/states/mt/districts/senate/32"
    rel: in-district
    area_weight: 0.0079
  - to: "us/states/mt/districts/senate/31"
    rel: in-district
    area_weight: 0.0055
  - to: "us/states/mt/districts/house/60"
    rel: in-district
    area_weight: 0.4471
  - to: "us/states/mt/districts/house/66"
    rel: in-district
    area_weight: 0.155
  - to: "us/states/mt/districts/house/57"
    rel: in-district
    area_weight: 0.1326
  - to: "us/states/mt/districts/house/68"
    rel: in-district
    area_weight: 0.0783
  - to: "us/states/mt/districts/house/77"
    rel: in-district
    area_weight: 0.0783
  - to: "us/states/mt/districts/house/69"
    rel: in-district
    area_weight: 0.0417
  - to: "us/states/mt/districts/house/59"
    rel: in-district
    area_weight: 0.0403
  - to: "us/states/mt/districts/house/65"
    rel: in-district
    area_weight: 0.0091
sources:
  - field: demographics
    source: "Census ACS 2023"
  - field: districts
    source: "PostGIS area-intersection over Census TIGER 2024 boundaries"
confidence: official
tags: [jurisdiction, county, mt]
timestamp: "2026-07-03"
---

# Gallatin County, MT

County jurisdiction — 2 officeholders mapped.

## Demographics (ACS 2023)

| Measure | Value |
| --- | --- |
| Population | 124074 |
| Under 18 | 23305 |
| 18–64 | 83904 |
| 65+ | 16865 |
| Median household income | 93528 |
| Poverty rate | 9.52 |
| Homeownership rate | 61.06 |
| Unemployment rate | 2.31 |
| Median home value | 667600 |
| Gini index | 0.4764 |
| Vacancy rate | 11.04 |
| White | 110173 |
| Black | 555 |
| Asian | 1560 |
| Native | 755 |
| Hispanic/Latino | 6658 |
| Bachelor's or higher | 60419 |

## Districts

- [MT-01](/us/states/mt/districts/01.md) — 100% (congressional)
- [MT Senate District 30](/us/states/mt/districts/senate/30.md) — 49% (state senate)
- [MT Senate District 33](/us/states/mt/districts/senate/33.md) — 16% (state senate)
- [MT Senate District 29](/us/states/mt/districts/senate/29.md) — 13% (state senate)
- [MT Senate District 34](/us/states/mt/districts/senate/34.md) — 8% (state senate)
- [MT Senate District 39](/us/states/mt/districts/senate/39.md) — 8% (state senate)
- [MT Senate District 35](/us/states/mt/districts/senate/35.md) — 4% (state senate)
- [MT Senate District 32](/us/states/mt/districts/senate/32.md) — 1% (state senate)
- [MT Senate District 31](/us/states/mt/districts/senate/31.md) — 1% (state senate)
- [MT House District 60](/us/states/mt/districts/house/60.md) — 45% (state house)
- [MT House District 66](/us/states/mt/districts/house/66.md) — 16% (state house)
- [MT House District 57](/us/states/mt/districts/house/57.md) — 13% (state house)
- [MT House District 68](/us/states/mt/districts/house/68.md) — 8% (state house)
- [MT House District 77](/us/states/mt/districts/house/77.md) — 8% (state house)
- [MT House District 69](/us/states/mt/districts/house/69.md) — 4% (state house)
- [MT House District 59](/us/states/mt/districts/house/59.md) — 4% (state house)
- [MT House District 65](/us/states/mt/districts/house/65.md) — 1% (state house)

## Source

- demographics: Census ACS 2023
- districts: PostGIS area-intersection over Census TIGER 2024 boundaries