RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4422 locations in the last 30 days (4583 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/22/20252221 W SUPERIOR STWest Town36Completed7 daysInternetCity 311
7/23/20262222 N KILDARE AVEHermosa35Completed1 dayPhone CallCity 311
11/18/20252222 N MAJOR AVEBelmont Cragin36Completed1 dayMobile DeviceCity 311
1/8/20262222 N MANGO AVEBelmont Cragin36Completed1 dayInternetCity 311
9/21/20252222 N MAPLEWOOD AVELogan Square1Completed10 daysMobile DeviceCity 311
2/9/20262222 N RACINE AVELincoln Park2Completed1 dayInternetCity 311
11/3/20252222 N RACINE AVELincoln Park2Completed2 daysInternetCity 311
11/6/20252222 N WAYNE AVELincoln Park2Completed1 dayMobile DeviceCity 311
9/22/20252222 S LEAVITT STLower West Side25Completed8 daysAlderman's OfficeCity 311
9/26/20252222 S LEAVITT STLower West Side25Completed4 daysMobile DeviceCity 311
9/19/20252222 S LEAVITT STLower West Side25Completed10 daysInternetCity 311
1/21/20262222 S SACRAMENTO AVESouth Lawndale24Completed1 dayInternetCity 311
3/30/20262222 W 19TH STLower West Side25Completed1 dayMobile DeviceCity 311
8/12/20262222 W 50TH STGage Park15Completed1 dayPhone CallCity 311
9/13/20262222 W BELMONT AVENorth Center32Completed10 daysInternetCity 311
5/8/20262222 W DIVERSEY PKWYLogan Square32Completed3 daysInternetCity 311
8/6/20252222 W EASTWOOD AVELincoln Square47Completed12 daysPhone CallCity 311
9/3/20252222 W GIDDINGS STLincoln Square47Completed12 daysInternetCity 311
7/26/20262223 N HOYNE AVELogan Square32Completed11 daysInternetCity 311
8/14/20262223 N KEELER AVEHermosa35Completed11 daysspot-open311-Chicago+WorksCity 311
8/14/20262223 N KEELER AVEHermosa35Completed11 daysInternetCity 311
5/21/20262223 N LEAMINGTON AVEBelmont Cragin26Completed5 daysMobile DeviceCity 311
7/21/20262223 N LONG AVEBelmont Cragin36Completed13 daysInternetCity 311
6/10/20262223 N MAJOR AVEBelmont Cragin36Completed6 daysInternetCity 311
1/6/20262223 S HOMAN AVESouth Lawndale22Completed1 dayInternetCity 311
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