Which state has the highest Min. SEER2 Rating - Split System AC < 45k btu/h?

California has the highest Min. SEER2 Rating - Split System AC < 45k btu/h, at 14.3, followed by Texas (14.3) and Florida (14.3).

Which state has the lowest Min. SEER2 Rating - Split System AC < 45k btu/h?

Wyoming has the lowest Min. SEER2 Rating - Split System AC < 45k btu/h, at 13.4.

What is the median Min. SEER2 Rating - Split System AC < 45k btu/h across US states?

The median is 13.4 across the 51 US states with data.

Where does this seer requirements by state data come from?

Rankodex compiles it from World Population Review and the primary sources it cites: The SEER2 Guide - Johnstone Supply; Understanding SEER Ratings in 2025 - Hope Plumbing; SEER to SEER2 Conversion: Understanding the 2025 Air Conditioner Efficiency Standard - Watkins Heating & Cooling; Understanding SEER2: Minimum SEER Rating In 2023 State-By-State - Learn Metrics.

State rankings

SEER Requirements by State

Name: SEER Requirements by State
Creator: Rankodex

California has the highest Min. SEER2 Rating - Split System AC < 45k btu/h (14.3), followed by Texas (14.3) and Florida (14.3). Wyoming has the lowest (13.4).

Infrastructure & Energy51 states · 9 metricsUpdated Dec 16, 2025Original page

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51 of 51 states

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Min. SEER2 Rating - Split System AC < 45k btu/h

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All 51 ranked

Highest first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one state; the lines mark the median and the middle half.

Median

13.4

Middle half 13.4 – 14.3

Average

13.8

51 states

Highest

14.3

California

Lowest

13.4

Wyoming

Data

Click a column to sort, a row to highlight that place on the charts.

51 states · # = rank by Min. SEER2 Rating - Split System AC < 45k btu/h

#
1	California	Southwest	14.3	13.8	14.3	13.4
1	Texas	Southeast	14.3	13.8	14.3	13.4
1	Florida	Southeast	14.3	13.8	14.3	13.4
1	Georgia	Southeast	14.3	13.8	14.3	13.4
1	North Carolina	Southeast	14.3	13.8	14.3	13.4
1	Virginia	Southeast	14.3	13.8	14.3	13.4
1	Arizona	Southwest	14.3	13.8	14.3	13.4
1	Tennessee	Southeast	14.3	13.8	14.3	13.4
1	Maryland	Southeast	14.3	13.8	14.3	13.4
1	South Carolina	Southeast	14.3	13.8	14.3	13.4
1	Alabama	Southeast	14.3	13.8	14.3	13.4
1	Kentucky	Southeast	14.3	13.8	14.3	13.4
1	Louisiana	Southeast	14.3	13.8	14.3	13.4
1	Oklahoma	Southeast	14.3	13.8	14.3	13.4
1	Nevada	Southwest	14.3	13.8	14.3	13.4
1	Arkansas	Southeast	14.3	13.8	14.3	13.4
1	Mississippi	Southeast	14.3	13.8	14.3	13.4
1	New Mexico	Southwest	14.3	13.8	14.3	13.4
1	Hawaii	Southeast	14.3	13.8	14.3	13.4
1	Delaware	Southeast	14.3	13.8	14.3	13.4
1	District of Columbia	Southeast	14.3	13.8	14.3	13.4
22	New York	North	13.4	13.4	14.3	13.4
22	Pennsylvania	North	13.4	13.4	14.3	13.4
22	Illinois	North	13.4	13.4	14.3	13.4
22	Ohio	North	13.4	13.4	14.3	13.4
22	Michigan	North	13.4	13.4	14.3	13.4
22	New Jersey	North	13.4	13.4	14.3	13.4
22	Washington	North	13.4	13.4	14.3	13.4
22	Massachusetts	North	13.4	13.4	14.3	13.4
22	Indiana	North	13.4	13.4	14.3	13.4
22	Missouri	North	13.4	13.4	14.3	13.4
22	Colorado	North	13.4	13.4	14.3	13.4
22	Wisconsin	North	13.4	13.4	14.3	13.4
22	Minnesota	North	13.4	13.4	14.3	13.4
22	Oregon	North	13.4	13.4	14.3	13.4
22	Connecticut	North	13.4	13.4	14.3	13.4
22	Utah	North	13.4	13.4	14.3	13.4
22	Iowa	North	13.4	13.4	14.3	13.4
22	Kansas	North	13.4	13.4	14.3	13.4
22	Idaho	North	13.4	13.4	14.3	13.4
22	Nebraska	North	13.4	13.4	14.3	13.4
22	West Virginia	North	13.4	13.4	14.3	13.4
22	New Hampshire	North	13.4	13.4	14.3	13.4
22	Maine	North	13.4	13.4	14.3	13.4
22	Montana	North	13.4	13.4	14.3	13.4
22	Rhode Island	North	13.4	13.4	14.3	13.4
22	South Dakota	North	13.4	13.4	14.3	13.4
22	North Dakota	North	13.4	13.4	14.3	13.4
22	Alaska	North	13.4	13.4	14.3	13.4
22	Vermont	North	13.4	13.4	14.3	13.4
22	Wyoming	North	13.4	13.4	14.3	13.4

What correlates with Min. SEER2 Rating - Split System AC < 45k btu/h?

Pearson r against 2,092 other state metrics sharing at least 31 states. Correlation is not causation.

Higher together

Places that have a higher Min. SEER2 Rating - Split System AC < 45k btu/h tend to score higher on these

Indoor Allergy Rainfall ScoreAllergy-Friendly States
r = +0.81 · very strong · n = 49
Plot
WeatherPension-Friendly States
r = +0.80 · very strong · n = 49
Plot
Average Temperature (°F)Climate by State (1991–2020 Averages)
r = +0.79 · very strong · n = 50
Plot
Average Overall Temperature 1901-2000Coldest States in the US
r = +0.79 · very strong · n = 50
Plot
Average Temperature (°F) 1901-2000Average Temperatures by State
r = +0.79 · very strong · n = 50
Plot
Average January Temperature (°F)Climate by State (1991–2020 Averages)
r = +0.79 · very strong · n = 50
Plot

Opposite directions

Places that have a higher Min. SEER2 Rating - Split System AC < 45k btu/h tend to score lower on these

Heating Degree Days per YearClimate by State (1991–2020 Averages)
r = −0.83 · very strong · n = 48
Plot
Average IQ ScoreAverage IQ by State
r = −0.76 · very strong · n = 50
Plot
Frost Line Average DepthFrost Lines by State
r = −0.74 · very strong · n = 49
Plot
Favorite Season is SummerAll Four Seasons States
r = −0.72 · very strong · n = 51
Plot
Average Snowfall 2006-2020Average Snowfall By State
r = −0.72 · very strong · n = 49
Plot
Average Annual Snowfall 1980-2010Snowiest States
r = −0.71 · very strong · n = 49
Plot

Quick answers

Which state has the highest Min. SEER2 Rating - Split System AC < 45k btu/h?: California has the highest Min. SEER2 Rating - Split System AC < 45k btu/h, at 14.3, followed by Texas (14.3) and Florida (14.3).
Which state has the lowest Min. SEER2 Rating - Split System AC < 45k btu/h?: Wyoming has the lowest Min. SEER2 Rating - Split System AC < 45k btu/h, at 13.4.
What is the median Min. SEER2 Rating - Split System AC < 45k btu/h across US states?: The median is 13.4 across the 51 US states with data.
Where does this seer requirements by state data come from?: Rankodex compiles it from World Population Review and the primary sources it cites: The SEER2 Guide - Johnstone Supply; Understanding SEER Ratings in 2025 - Hope Plumbing; SEER to SEER2 Conversion: Understanding the 2025 Air Conditioner Efficiency Standard - Watkins Heating & Cooling; Understanding SEER2: Minimum SEER Rating In 2023 State-By-State - Learn Metrics.

Higher together

Opposite directions

Quick answers

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