RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4443 locations in the last 30 days (4606 reports) · Last sighting 13 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/26/202611428 S CALUMET AVERoseland9Completed9 daysInternetCity 311
5/3/202611429 S FORRESTVILLE AVEPullman9Completed4 daysInternetCity 311
10/24/202511429 S WATKINS AVEMorgan Park21Completed6 daysPhone CallCity 311
12/10/20251142 N KEDVALE AVEHumboldt Park37Completed1 dayInternetCity 311
8/21/20251142 N KEDVALE AVEHumboldt Park37Completed12 daysAlderman's OfficeCity 311
5/15/20261142 N KEDVALE AVEHumboldt Park37Completed3 daysMobile DeviceCity 311
7/23/20261142 N WOOD STWest Town1Completed12 daysInternetCity 311
5/5/20261142 N WOOD STWest Town1Completed3 daysInternetCity 311
8/6/20251142 N WOOD STWest Town1Completed9 daysMobile DeviceCity 311
4/16/20261142 S PLYMOUTH CTLoop4Completed1 dayInternetCity 311
8/11/20261142 W BARRY AVELake View44Completed9 daysMobile DeviceCity 311
3/23/20261142 W DIVERSEY PKWYLake View44Completed1 dayInternetCity 311
4/3/20261142 W DIVERSEY PKWYLake View44Completed3 daysInternetCity 311
11/3/20251142 W NORTH NORTH SHORE AVERogers Park49Completed2 daysAlderman's OfficeCity 311
1/13/20261142 W NORTH SHORE AVERogers Park49Completed1 dayInternetCity 311
7/29/20251142 W NORTH SHORE AVERogers Park49Completed7 daysInternetCity 311
2/2/20261142 W NORTH SHORE AVERogers Park49Completed1 dayPhone CallCity 311
11/26/20251142 W NORTH SHORE AVERogers Park49Completed5 daysInternetCity 311
7/9/20261142 W WASHBURNE AVENear West Side28Completed6 daysMobile DeviceCity 311
4/29/20261142 W WOLFRAM STLake View44Completed5 daysPhone CallCity 311
8/27/20261142 W WOLFRAM STLake View44Completed6 daysInternetCity 311
7/22/20251142 W WOLFRAM STLake View44Completed14 daysInternetCity 311
3/10/20261142 W WOLFRAM STLake View44Completed2 daysInternetCity 311
4/18/202611430 S CHAMPLAIN AVEPullman9Completed3 daysPhone CallCity 311
7/25/202511430 S ST LAWRENCE AVEPullman9Completed11 daysInternetCity 311
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