RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4555 locations in the last 30 days (4710 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20255525 N CENTRAL AVEJefferson Park45Completed13 daysPhone CallCity 311
9/3/20255223 N MELVINA AVEJefferson Park45Completed13 daysAlderman's OfficeCity 311
7/14/20266116 W IRVING PARK RDPortage Park38Completed13 daysPhone CallCity 311
8/21/20264417 N GREENVIEW AVEUptown47Completed13 daysMobile DeviceCity 311
8/28/20255240 N MOBILE AVEJefferson Park45Completed13 daysPhone CallCity 311
9/15/20262247 N CAMPBELL AVELogan Square1Completed13 daysAlderman's OfficeCity 311
8/11/20263026 N LOWELL AVEHermosa31Completed13 daysMobile DeviceCity 311
8/26/20254450 N KENTON AVEIrving Park39Completed13 daysAlderman's OfficeCity 311
9/3/20258412 S WOLCOTT AVEAuburn Gresham18Completed13 daysPhone CallCity 311
8/26/20263045 S NORMAL AVEBridgeport11Completed13 daysAlderman's OfficeCity 311
8/28/20255555 N MCVICKER AVEJefferson Park45Completed13 daysPhone CallCity 311
9/10/20252218 N LAMON AVEBelmont Cragin26Completed13 daysMobile DeviceCity 311
8/12/20262114 W MAYPOLE AVENear West Side27Completed13 daysPhone CallCity 311
8/28/20266858 W 65TH STClearing13Completed13 daysInternetCity 311
9/9/20256317 S TRIPP AVEWest Lawn13Completed13 daysMobile DeviceCity 311
8/13/20262507 N FRANCISCO AVELogan Square1Completed13 daysInternetCity 311
9/10/202510502 S LAWNDALE AVEMount Greenwood19Completed13 daysAlderman's OfficeCity 311
10/8/20254742 N LAWNDALE AVEAlbany Park33Completed13 daysInternetCity 311
9/9/20266714 W 63RD STClearing13Completed13 daysInternetCity 311
8/20/20263719 N NOTTINGHAM AVEDunning38Completed13 daysMobile DeviceCity 311
9/17/20263835 N FREMONT STLake View46Completed13 daysInternetCity 311
9/4/20253542 E 95TH STEast Side10Completed13 daysPhone CallCity 311
9/8/20264527 W SCHUBERT AVEHermosa31Completed13 daysAlderman's OfficeCity 311
8/26/20254442 N KENTON AVEIrving Park39Completed13 daysAlderman's OfficeCity 311
9/2/2026319 W 23RD PLArmour Square11Completed13 daysPhone CallCity 311
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