RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4676 locations in the last 30 days (4839 reports) · Last sighting 13 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.

32080fewer → more

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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/6/20255637 W CORNELIA AVEPortage Park30Completed13 daysPhone CallCity 311
9/3/20254919 N MOBILE AVEJefferson Park45Completed13 daysAlderman's OfficeCity 311
8/27/20254044 W NELSON STAvondale31Completed13 daysAlderman's OfficeCity 311
8/12/20252130 N KEDZIE AVELogan Square35Completed13 daysAlderman's OfficeCity 311
8/7/20256600 W 64TH PLClearing13Completed13 daysInternetCity 311
9/8/20265140 W ALTGELD STBelmont Cragin31Completed13 daysInternetCity 311
8/18/2026631 W WELLINGTON AVELake View44Completed13 daysInternetCity 311
7/22/20265106 W STRONG STJefferson Park45Completed13 daysPhone CallCity 311
9/9/20251031 W NEWPORT AVELake View44Completed13 daysInternetCity 311
8/27/20258120 S ADA STAuburn Gresham17Completed13 daysAlderman's OfficeCity 311
8/28/20254700 S LAWNDALE AVEArcher Heights14Completed13 daysPhone CallCity 311
8/6/20256137 W ADDISON STDunning30Completed13 daysAlderman's OfficeCity 311
8/11/20264141 W NELSON STAvondale31Completed13 daysMobile DeviceCity 311
8/19/20263136 W BLOOMINGDALE AVELogan Square26Completed13 daysMobile DeviceCity 311
8/28/20251848 N MAUD AVELincoln Park43Completed13 daysInternetCity 311
8/13/2025212 S OAKLEY BLVDNear West Side27Completed13 daysMobile DeviceCity 311
9/17/20264407 N BEACON STUptown46Completed13 daysInternetCity 311
8/28/2026430 W 104TH STRoseland21Completed13 daysPhone CallCity 311
8/28/20253819 N SEELEY AVENorth Center47Completed13 daysInternetCity 311
8/18/20263021 N AVERS AVEAvondale31Completed13 daysAlderman's OfficeCity 311
7/15/20263709 N OSCEOLA AVEDunning38Completed13 daysPhone CallCity 311
8/1/20251949 W CHICAGO AVEWest Town36Completed13 daysInternetCity 311
8/26/20264214 W WALTON STHumboldt Park37Completed13 daysPhone CallCity 311
8/20/20264419 N BERNARD STAlbany Park33Completed13 daysAlderman's OfficeCity 311
9/2/20256640 S EVANS AVEWoodlawn20Completed13 daysMobile DeviceCity 311
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