State rankings

Rat Population by State

California has the highest Rat Population (Estimated) in 2022 (25M), followed by New York (20M) and Texas (15M). Wyoming has the lowest (500K).

Environment50 states · 2 metricsUpdated Mar 19, 2026Original page
3 sources
Year 202250 of 51 states
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Rat Population (Estimated), 2022

Darker means higher. Click a place to highlight it.

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All 50 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
1M
Middle half 1M – 2M
Average
3M
50 states
Highest
25M
California
Lowest
500K
Wyoming

Data

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

50 states · # = rank by Rat Population (Estimated)
#
1California25M225
2New York20M189
3Texas15M248
4Florida10M354
5Illinois8M203
6Pennsylvania7M234
7Ohio6M198
8Michigan5M248
9New Jersey4M244
10North Carolina3M282
11Georgia2M328
11Virginia2M304
11Washington2M213
11Arizona2M348
11Tennessee2M303
11Massachusetts2M234
11Indiana2M187
11Missouri2M199
11Maryland2M217
11Wisconsin2M212
11Minnesota2M178
11Louisiana2M224
11Oklahoma2M260
24Colorado1M209
24South Carolina1M236
24Alabama1M301
24Kentucky1M189
24Oregon1M237
24Connecticut1M241
24Utah1M381
24Nevada1M292
24Iowa1M208
24Arkansas1M218
24Kansas1M212
24Mississippi1M251
24New Mexico1M196
24Idaho1M210
24Nebraska1M216
24West Virginia1M220
40Hawaii500K201
40New Hampshire500K291
40Maine500K312
40Montana500K168
40Rhode Island500K335
40Delaware500K412
40South Dakota500K189
40North Dakota500K194
40Alaska500K181
40Vermont500K343
40Wyoming500K241

What correlates with Rat Population (Estimated) (2022)?

Pearson r against 2,112 other state metrics sharing at least 30 states. Ranks are read by standing: a better rank counts as higher, whether rank 1 is the best place on a list or the worst. Correlation is not causation.

Higher together

Places that have a higher Rat Population (Estimated) tend to score higher on these (or rank better)

  1. Transgender Population Age 13-17 (2016-2021)What Percentage of the Population is Transgender?
    r = +0.98 · very strong · n = 50
    Plot
  2. $2m To 5mSBA Loan List by State
    r = +0.97 · very strong · n = 50
    Plot
  3. $1m To 2mSBA Loan List by State
    r = +0.97 · very strong · n = 50
    Plot
  4. $350k To 1mSBA Loan List by State
    r = +0.97 · very strong · n = 50
    Plot
  5. $5m To 10mSBA Loan List by State
    r = +0.96 · very strong · n = 50
    Plot
  6. Federal Share of State Government Revenue (Aid Received)Federal Aid by State
    r = +0.96 · very strong · n = 50
    Plot

Opposite directions

Places that have a higher Rat Population (Estimated) tend to score lower on these (or rank worse)

  1. FTE Convictions RankMost Corrupt StatesA rank: rank 1 is the worst
    r = −0.62 · strong · n = 50
    Plot
  2. Req. English CreditsHigh School Graduation Requirements by State
    r = −0.58 · strong · n = 47
    Plot
  3. % VeteransVeterans Unemployment Benefits by State
    r = −0.52 · strong · n = 50
    Plot
  4. OpportunityBest States to Live InA rank: rank 1 is the best
    r = +0.51 · strong · n = 49
    Plot
  5. Mitigation Efforts RankFood Waste by StateA rank: rank 1 is the best
    r = +0.49 · moderate · n = 50
    Plot
  6. Related Groups per Capita RankBest States to HomeschoolA rank: rank 1 is the best
    r = +0.48 · moderate · n = 50
    Plot

Quick answers

Which state has the highest Rat Population (Estimated)?
California has the highest Rat Population (Estimated) in 2022, at 25M, followed by New York (20M) and Texas (15M).
Which state has the lowest Rat Population (Estimated)?
Wyoming has the lowest Rat Population (Estimated) in 2022, at 500K.
What is the median Rat Population (Estimated) across US states?
The median is 1M across the 50 US states with data in 2022.
Where does this rat population by state data come from?
Rankodex compiles it from World Population Review and the primary sources it cites: Rats in All States - National Pest Management Association; Rats of the United States - Wikimedia; Rattiest States and Cities - Pink Storage.