RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4213 locations in the last 30 days (4369 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/25/20255406 S SEELEY AVENew City16Completed8 daysAlderman's OfficeCity 311
8/6/20266141 S MAPLEWOOD AVEChicago Lawn16Completed6 daysPhone CallCity 311
8/25/20252019 W GARFIELD BLVDWest Englewood16Completed8 daysMobile DeviceCity 311
8/10/20266553 S WINCHESTER AVEWest Englewood16Completed2 daysPhone CallCity 311
8/27/20255735 S LOOMIS STWest Englewood16Completed13 daysAlderman's OfficeCity 311
4/19/20266423 S CAMPBELL AVEChicago Lawn16Completed1 dayInternetCity 311
8/26/20256226 S ELIZABETH STWest Englewood16Completed7 daysAlderman's OfficeCity 311
1/6/20266243 S CALIFORNIA AVEChicago Lawn16Completed1 dayInternetCity 311
7/6/20267041 S MORGAN STEnglewood16Completed4 daysAlderman's OfficeCity 311
12/24/20255228 S MARSHFIELD AVENew City16Completed2 daysPhone CallCity 311
4/19/20266528 S ARTESIAN AVEChicago Lawn16Completed1 dayInternetCity 311
12/10/20251042 W MARQUETTE RDEnglewood16Completed1 dayInternetCity 311
4/17/20266437 S WASHTENAW AVEChicago Lawn16Completed3 daysPhone CallCity 311
1/6/20266438 S CARPENTER STEnglewood16Completed1 dayMobile DeviceCity 311
8/25/20256533 S JUSTINE STWest Englewood16Completed8 daysAlderman's OfficeCity 311
1/6/20262543 W MARQUETTE RDChicago Lawn16Completed1 dayPhone CallCity 311
8/28/20255924 S GREEN STEnglewood16Completed12 daysInternetCity 311
4/22/20266113 S SANGAMON STEnglewood16Completed1 dayMobile DeviceCity 311
12/1/20256442 S CARPENTER STEnglewood16Completed2 daysMobile DeviceCity 311
8/26/20256237 S LAFLIN STWest Englewood16Completed14 daysInternetCity 311
4/21/2026735 W 60TH STEnglewood16Completed2 daysPhone CallCity 311
8/21/20255251 S MARSHFIELD AVENew City16Completed12 daysPhone CallCity 311
8/11/20256842 S TALMAN AVEChicago Lawn16Completed10 daysPhone CallCity 311
4/21/20265358 S LAFLIN STNew City16Completed0 daysInternetCity 311
8/26/20256610 S LAFLIN STWest Englewood16Completed7 daysAlderman's OfficeCity 311
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