RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4699 locations in the last 30 days (4852 reports) · Last sighting yesterday

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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.

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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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/4/20251532 W BIRCHWOOD AVERogers Park49Completed7 daysPhone CallCity 311
8/3/20261532 W NELSON STLake View32Completed10 daysMobile DeviceCity 311
5/21/20261532 W NELSON STLake View32Completed5 daysInternetCity 311
6/25/20261533 E 53RD STHyde Park4Completed5 daysInternetCity 311
9/11/20261533 E 67TH STSouth Shore5Completed11 daysInternetCity 311
3/21/20261533 N CAMPBELL AVEWest Town1Completed4 daysMobile DeviceCity 311
6/29/20261533 N CAMPBELL AVEWest Town1Completed7 daysInternetCity 311
7/31/20261533 N CLEVELAND AVENear North Side2Completed10 daysMobile DeviceCity 311
7/25/20251533 N HAMLIN AVEHumboldt Park26Completed11 daysInternetCity 311
4/2/20261533 N KEYSTONE AVEHumboldt Park26Completed1 dayInternetCity 311
2/8/20261533 N KEYSTONE AVEHumboldt Park26Completed1 dayInternetCity 311
11/14/20251533 N KEYSTONE AVEHumboldt Park26Completed5 daysInternetCity 311
9/13/20251533 N KEYSTONE AVEHumboldt Park26Completed13 daysInternetCity 311
8/12/20261533 N KEYSTONE AVEHumboldt Park26Completed8 daysMobile DeviceCity 311
5/13/20261533 N KEYSTONE AVEHumboldt Park26Completed5 daysMobile DeviceCity 311
5/5/20261533 N MAPLEWOOD AVEWest Town1Completed1 dayInternetCity 311
12/18/20251533 S HOMAN AVENorth Lawndale24Completed0 daysInternetCity 311
9/8/20261533 W 105TH STBeverly19Completed8 daysAlderman's OfficeCity 311
6/9/20261533 W BARRY AVELake View32Completed1 dayMobile DeviceCity 311
9/16/20251533 W CHICAGO AVEWest Town1Completed9 daysMobile DeviceCity 311
6/23/20261533 W WARREN BLVDNear West Side27Completed3 daysPhone CallCity 311
4/22/20261533 W WARREN BLVDNear West Side27Completed1 dayPhone CallCity 311
8/23/20251534 N AVERS AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
7/31/20261534 N HARDING AVEHumboldt Park26Completed13 daysAlderman's OfficeCity 311
8/13/20261534 N HARDING AVEHumboldt Park26Completed6 daysPhone CallCity 311
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