RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4521 locations in the last 30 days (4694 reports) · Last sighting 12 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.

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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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/2026542 E 89TH PLChatham8Completed17 daysPhone CallCity 311
8/17/2026522 E 89TH STChatham8Completed17 daysPhone CallCity 311
11/22/20258010 S INDIANA AVEChatham6Completed2 daysInternetCity 311
3/11/20268456 S RHODES AVEChatham6Completed2 daysMobile DeviceCity 311
4/13/20268259 S ST LAWRENCE AVEChatham6Completed0 daysInternetCity 311
9/9/202526 E 91ST STChatham6Completed9 daysPhone CallCity 311
11/19/20257919 S ST LAWRENCE AVEChatham6Completed2 daysPhone CallCity 311
3/2/20268142 S INGLESIDE AVEChatham8Completed2 daysPhone CallCity 311
6/30/2026948 E 83RD STChatham8Completed8 daysPhone CallCity 311
2/23/2026733 E 88TH PLChatham8Completed1 dayInternetCity 311
11/18/20258841 S COTTAGE GROVE AVEChatham8Completed2 daysPhone CallCity 311
11/14/20258645 S VERNON AVEChatham6Completed4 daysPhone CallCity 311
3/12/20268733 S MICHIGAN AVEChatham6Completed6 daysMobile DeviceCity 311
11/17/2025115 W 83RD STChatham6Completed1 dayInternetCity 311
11/17/20257904 S MICHIGAN AVEChatham6Completed1 dayPhone CallCity 311
10/31/20258116 S INGLESIDE AVEChatham8Completed3 daysPhone CallCity 311
3/1/2026711 E 89TH PLChatham8Completed3 daysPhone CallCity 311
11/17/20258017 S STEWART AVEChatham6Completed1 dayPhone CallCity 311
2/19/20268851 S STATE STChatham6Completed5 daysMobile DeviceCity 311
2/28/2026720 E 92ND PLChatham8Completed4 daysMobile DeviceCity 311
10/18/20268159 S INGLESIDE AVEChatham8Open—Phone CallCity 311
8/8/20257942 S MICHIGAN AVEChatham6Completed5 daysPhone CallCity 311
8/7/20258022 S CALUMET AVEChatham6Completed6 daysPhone CallCity 311
4/7/2026530 E 87TH PLChatham8Completed1 dayPhone CallCity 311
10/29/20257905 S DR MLK DRChatham6Completed5 daysPhone CallCity 311
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