Where to see a Brown Rat in the US
State parks in counties where the Brown Rat is observed, by state (research-grade iNaturalist records; live sighting data on every park page):
- California — 141 parks
- Massachusetts — 125 parks
- Connecticut — 118 parks
- New York — 86 parks
- New Hampshire — 80 parks
- Vermont — 64 parks
- Florida — 54 parks
- Washington — 52 parks
- Oregon — 50 parks
- Rhode Island — 47 parks
- Pennsylvania — 44 parks
- New Jersey — 33 parks
- Ohio — 30 parks
- Maine — 28 parks
- Maryland — 26 parks
- Delaware — 25 parks
- Texas — 18 parks
- North Carolina — 17 parks
- Minnesota — 17 parks
- Tennessee — 13 parks
- Wisconsin — 13 parks
- Hawaii — 13 parks
- Michigan — 12 parks
- Utah — 12 parks
- Nevada — 8 parks
- Virginia — 7 parks
- West Virginia — 7 parks
- Indiana — 5 parks
- New Mexico — 5 parks
- South Carolina — 3 parks
- Georgia — 3 parks
- Illinois — 3 parks
- Arkansas — 3 parks
- Colorado — 3 parks
- Arizona — 3 parks