RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4482 locations in the last 30 days (4662 reports) · Last sighting 20 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20254030 N TROY STIrving Park33Completed9 daysInternetCity 311
9/30/20251036 N MARSHFIELD AVEWest Town1Completed9 daysMobile DeviceCity 311
7/29/20263925 W 63RD PLWest Lawn23Completed9 daysAlderman's OfficeCity 311
7/14/202610400 S AVENUE GEast Side10Completed9 daysPhone CallCity 311
8/19/20262644 S RIDGEWAY AVESouth Lawndale22Completed9 daysAlderman's OfficeCity 311
7/18/2026642 W SCHUBERT AVELincoln Park43Completed9 daysPhone CallCity 311
10/11/20252205 W WARREN BLVDNear West Side27Completed9 daysPhone CallCity 311
8/31/20258139 S KIMBARK AVEAvalon Park8Completed9 daysInternetCity 311
9/3/20251522 W WILSON AVEUptown47Completed9 daysPhone CallCity 311
7/13/20262155 N LATROBE AVEBelmont Cragin26Completed9 daysMobile DeviceCity 311
8/19/202525 E DIVISION STNear North Side2Completed9 daysAlderman's OfficeCity 311
9/23/20262910 W RASCHER AVELincoln Square39Completed9 daysMobile DeviceCity 311
10/6/20255616 W EASTWOOD AVEPortage Park45Completed9 daysMobile DeviceCity 311
10/1/20256035 W 59TH STClearing13Completed9 daysAlderman's OfficeCity 311
8/26/20251001 N RIDGEWAY AVEHumboldt Park27Completed9 daysPhone CallCity 311
8/2/20264312 N HAMLIN AVEIrving Park33Completed9 daysInternetCity 311
9/6/20262838 W 25TH STSouth Lawndale24Completed9 daysInternetCity 311
7/13/20262235 N LECLAIRE AVEBelmont Cragin26Completed9 daysMobile DeviceCity 311
9/15/20251750 E 55TH STHyde Park5Completed9 daysInternetCity 311
9/28/20263920 N CALIFORNIA AVEIrving Park35Completed9 daysInternetCity 311
9/27/20252320 W 21ST STLower West Side25Completed9 daysMobile DeviceCity 311
9/27/20251502 W WILSON AVEUptown47Completed9 daysMobile DeviceCity 311
8/19/202530 E ELM STNear North Side2Completed9 daysAlderman's OfficeCity 311
6/29/20268342 S CONSTANCE AVEAvalon Park8Completed9 daysAlderman's OfficeCity 311
7/18/2026644 W SCHUBERT AVELincoln Park43Completed9 daysPhone CallCity 311
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