Kentucky · County air quality · 2025
Livingston County, Kentucky
Median AQI 40 (Good). 88.6% of monitored days rated Good, direct from EPA Air Quality System stations.
- 40
- Median AQI
- 88.6%
- Good-air days
- 0
- Unhealthy days
- 77%
- Cleaner than US counties
Livingston County's 2025 annual median AQI is 40 (Good), with 88.6% Good days
According to the U.S. EPA Air Quality System, Livingston County, Kentucky posted a 2025 median AQI of 40 (Good) across 228 monitored days, with 88.6% rated Good and 0 unhealthy or worse. This is an annual comparison, not today's advisory.
Data source EPA Air Quality System (AQS)
- Cleaner than US
- Livingston County's 88.6% Good-day share places it cleaner than 77% of US counties in 2025.
- Closest median-AQI peer
- Anderson County (91.3% Good, median AQI 40) is the closest nationwide median-AQI peer to Livingston County.
- 2020–2025 trend
- Livingston County's floor-qualifying Good-day share is worsening from 2020 to 2025 (94.8% → 88.6%).
- Median AQI
- Median AQI: 40
According to the 2025 EPA AQS county release on PlainAirData, Livingston County, Kentucky ranks #462 of 951 by median AQI (40) and #219 by good-day share (88.6%). Ponce County, Puerto Rico is #1 of 951 by median AQI (3, 91.4% Good days) at good-day-share #159 ≠ largest of 7 at 100.0% Good days #1 by good-day share (100.0%, median AQI 9) at median-AQI #7.
Annual release change
What changed in the 2025 EPA annual release
- Livingston County's Good-day share fell from 90.5% to 88.6% between the 2024 and 2025 EPA annual releases, a change of -1.9 percentage points.
Data updated August 2026
- Good · 202 d · 88.6%
- Moderate · 26 d · 11.4%
How did Livingston County's air break down in 2025?
Across 228 monitored days, 202 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 93 (Moderate).
EPA AQS →Share of monitored days at AQI 0-50 (Good band).
Share of monitored days above AQI 150 (Unhealthy or worse). Bar maxes at 10% (worst-county ceiling).
Where Livingston County sits nationally
COUNT-derived placement among 951 US counties with at least 100 monitored days in 2025. Livingston County's Good-day share is 88.6% - cleaner than 77% of that comparison set.
Livingston County Good-day share vs. every US county
Share of monitored days in the Good band (AQI 0–50) - EPA AQS annual release
88.6% Cleaner than 77% higher than 77% of 951 US counties
Each bar is a band; taller bars hold more US counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Environmental Protection Agency, Air Quality System (AQS) · 2025
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Livingston County.
- Ozone · 228 days · 100.0%
2024 daily-monitor rhythm in Livingston County
Month-by-month median AQI from EPA day-level county monitors (243 reported days in 2024). May posted the highest typical readings (median AQI 44, peak 50); Mar was cleanest at median 39.
Five-year seasonal record
EPA day-level county files · 2020–20241,215 daily readings show a recurring local pattern: Jun has the highest matched-month median AQI (51), while Feb is lowest (8). Each cell is that month’s median daily AQI, not a current-air forecast.
Lower AQI is better. The colors summarize EPA AQI bands; gaps mean the county had no day-level record for that month.
Health Impact Assessment
Livingston County's air quality is rated Good based on 88.6% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 88.6% of monitored days in 2025, with a median AQI of 40. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is Ozone, driving AQI on 228 of 228 monitored days.
5-Year Air Quality Trend
Air quality is worsening in Livingston County. Highest Good-day share: 2020 (94.8%, 235 of 248 monitored days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 235 | 12 | 1 | 0 | 37 | 105 |
| 2021 | 225 | 18 | 0 | 0 | 39 | 93 |
| 2022 | 207 | 34 | 2 | 0 | 41 | 119 |
| 2023 | 189 | 44 | 5 | 0 | 42 | 126 |
| 2024 | 220 | 23 | 0 | 0 | 42 | 90 |
| 2025 | 202 | 26 | 0 | 0 | 40 | 93 |
How does Livingston County compare?
How Livingston County compares
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by County dataset, 2020–2025 (aqs.epa.gov). For current conditions (not shown here — this page is historical annual data), see EPA AirNow (airnow.gov). See our methodology for how AQI, median, and coverage figures are computed.
Informational only, not professional advice. Data from EPA AQS. See our disclaimer. Spotted a figure that looks wrong? Report a correction.
Source: U.S. EPA Air Quality System (AQS) Annual AQI by county summary files for Livingston County, Kentucky · 2020–2025
Download this county's annual AQI row as CSV , with the same EPA fields and denominator shown on this page.
Every figure on PlainAirData is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.