RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4461 locations in the last 30 days (4647 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/28/20252020 W ROSCOE STNorth Center32Completed3 daysPhone CallCity 311
5/19/20265230 S NORMANDY AVEGarfield Ridge23Completed3 daysPhone CallCity 311
5/11/20262702 S HAMLIN AVESouth Lawndale22Completed3 daysAlderman's OfficeCity 311
4/24/20269510 S CONSTANCE AVESouth Deering7Completed3 daysPhone CallCity 311
1/9/20261100 N KEYSTONE AVEHumboldt Park37Completed3 daysPhone CallCity 311
12/21/20252902 N CENTRAL PARK AVEAvondale35Completed3 daysMobile DeviceCity 311
1/2/20266600 N WESTERN AVEWest Ridge40Completed3 daysMobile DeviceCity 311
5/11/20262545 S CENTRAL PARK AVESouth Lawndale22Completed3 daysAlderman's OfficeCity 311
4/3/20261651 N LUNA AVEAustin37Completed3 daysInternetCity 311
3/7/202621 N KILPATRICK AVEAustin28Completed3 daysInternetCity 311
10/16/20266241 N OAKLEY AVEWest Ridge50Completed3 daysPhone CallCity 311
1/30/20265700 W ROSCOE STPortage Park30Completed3 daysAlderman's OfficeCity 311
12/19/20257712 S EMERALD AVEAuburn Gresham17Completed3 daysPhone CallCity 311
12/12/20251717 W 21ST STLower West Side25Completed3 daysInternetCity 311
3/21/20266719 S MORGAN STEnglewood16Completed3 daysPhone CallCity 311
6/22/20267229 N DAMEN AVERogers Park49Completed3 daysPhone CallCity 311
2/6/20262451 N ROCKWELL STLogan Square1Completed3 daysPhone CallCity 311
6/2/20265244 S KILPATRICK AVEGarfield Ridge23Completed3 daysPhone CallCity 311
10/20/20254341 W DRUMMOND PLHermosa31Completed3 daysPhone CallCity 311
5/18/20263009 N SPAULDING AVEAvondale35Completed3 daysPhone CallCity 311
11/14/20252520 S OAKLEY AVELower West Side25Completed3 daysInternetCity 311
3/6/20266029 W NELSON STBelmont Cragin30Completed3 daysPhone CallCity 311
6/5/20261048 N LAWNDALE AVEHumboldt Park27Completed3 daysPhone CallCity 311
6/5/20264306 N MEADE AVEPortage Park38Completed3 daysMobile DeviceCity 311
5/24/20262968 S ARCHER AVEBridgeport11Completed3 daysMobile DeviceCity 311
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