---
type: Jurisdiction
title: "Lyon County, IA"
classification: county
fips: "19119"
state: "IA"
demographics:
  population: 12162
  population_under_18: 3425
  population_18_64: 6417
  population_65_plus: 2320
  median_household_income: 76746
  poverty_rate: 5.33
  homeownership_rate: 80.91
  unemployment_rate: 2.34
  median_home_value: 230000
  gini_index: 0.415
  vacancy_rate: 8.03
  race_white: 11396
  race_black: 43
  race_asian: 59
  race_native: 19
  hispanic: 470
  bachelors_plus: 1907
districts:
  - to: "us/states/ia/districts/04"
    rel: in-district
    area_weight: 0.9987
  - to: "us/states/ia/districts/senate/2"
    rel: in-district
    area_weight: 0.999
  - to: "us/states/ia/districts/house/4"
    rel: in-district
    area_weight: 0.999
sources:
  - field: demographics
    source: "Census ACS 2023"
  - field: districts
    source: "PostGIS area-intersection over Census TIGER 2024 boundaries"
confidence: official
tags: [jurisdiction, county, ia]
timestamp: "2026-07-03"
---

# Lyon County, IA

County jurisdiction.

## Demographics (ACS 2023)

| Measure | Value |
| --- | --- |
| Population | 12162 |
| Under 18 | 3425 |
| 18–64 | 6417 |
| 65+ | 2320 |
| Median household income | 76746 |
| Poverty rate | 5.33 |
| Homeownership rate | 80.91 |
| Unemployment rate | 2.34 |
| Median home value | 230000 |
| Gini index | 0.415 |
| Vacancy rate | 8.03 |
| White | 11396 |
| Black | 43 |
| Asian | 59 |
| Native | 19 |
| Hispanic/Latino | 470 |
| Bachelor's or higher | 1907 |

## Districts

- [IA-04](/us/states/ia/districts/04.md) — 100% (congressional)
- [IA Senate District 2](/us/states/ia/districts/senate/2.md) — 100% (state senate)
- [IA House District 4](/us/states/ia/districts/house/4.md) — 100% (state house)

## Source

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