RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4609 locations in the last 30 days (4762 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20256637 S KOSTNER AVEWest Lawn13Completed9 daysMobile DeviceCity 311
10/11/20256144 S KOLIN AVEWest Lawn13Completed10 daysMobile DeviceCity 311
10/18/20253725 W 63RD PLWest Lawn23Completed5 daysMobile DeviceCity 311
5/13/20263623 W 65TH PLWest Lawn23Completed2 daysInternetCity 311
6/5/20263752 W 70TH PLWest Lawn23Completed4 daysPhone CallCity 311
5/13/20263704 W 60TH PLWest Lawn23Completed2 daysAlderman's OfficeCity 311
5/12/20263704 W 60TH PLWest Lawn23Completed3 daysPhone CallCity 311
6/8/20263754 W 68TH STWest Lawn23Completed1 dayInternetCity 311
6/6/20265958 S KILBOURN AVEWest Lawn13Completed3 daysInternetCity 311
6/18/20263655 W 62ND STWest Lawn23Completed4 daysMobile DeviceCity 311
2/4/20265937 S KILBOURN AVEWest Lawn13Completed1 dayPhone CallCity 311
6/9/20267205 S HARDING AVEWest Lawn23Completed3 daysInternetCity 311
6/9/20267228 S LAWNDALE AVEWest Lawn23Completed3 daysAlderman's OfficeCity 311
6/1/20267224 S AVERS AVEWest Lawn23Completed2 daysInternetCity 311
10/21/20257210 S SPRINGFIELD AVEWest Lawn23Completed2 daysPhone CallCity 311
1/21/20266038 S PULASKI RDWest Lawn23Completed0 daysInternetCity 311
9/2/20253819 W 70TH PLWest Lawn23Completed13 daysInternetCity 311
10/10/20256232 S TRIPP AVEWest Lawn13Completed10 daysAlderman's OfficeCity 311
5/11/20266012 S KEELER AVEWest Lawn13Completed2 daysInternetCity 311
2/12/20266637 S KOSTNER AVEWest Lawn13Completed0 daysMobile DeviceCity 311
8/4/20266932 S KOMENSKY AVEWest Lawn23Completed9 daysAlderman's OfficeCity 311
5/11/20264353 W 59TH STWest Lawn13Completed2 daysInternetCity 311
9/2/20253741 W 70TH PLWest Lawn23Completed13 daysPhone CallCity 311
8/5/20266814 S KILDARE AVEWest Lawn23Completed8 daysPhone CallCity 311
10/14/20253731 W 70TH PLWest Lawn23Completed8 daysPhone CallCity 311
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