RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4434 locations in the last 30 days (4612 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/20264152 N HARDING AVEIrving Park39Completed9 daysPhone CallCity 311
9/8/20259031 S MUSKEGON AVESouth Chicago10Completed9 daysPhone CallCity 311
7/7/20261847 W WARNER AVENorth Center47Completed9 daysPhone CallCity 311
9/8/20252751 W 24TH STSouth Lawndale24Completed9 daysPhone CallCity 311
9/29/20253100 N KOLMAR AVEHermosa31Completed9 daysAlderman's OfficeCity 311
9/3/202511826 S LOOMIS STWest Pullman21Completed9 daysPhone CallCity 311
8/19/20256150 N HOYNE AVEWest Ridge40Completed9 daysInternetCity 311
10/1/20251310 W WEBSTER AVELincoln Park2Completed9 daysInternetCity 311
9/10/20252229 N KEDVALE AVEHermosa35Completed9 daysAlderman's OfficeCity 311
7/28/20261418 E 55TH STHyde Park5Completed9 daysPhone CallCity 311
9/8/202510529 S FOREST AVERoseland9Completed9 daysPhone CallCity 311
9/23/20255401 S LOREL AVEGarfield Ridge23Completed9 daysAlderman's OfficeCity 311
7/7/20265331 W NEWPORT AVEPortage Park30Completed9 daysAlderman's OfficeCity 311
8/12/20252130 N MOBILE AVEBelmont Cragin36Completed9 daysAlderman's OfficeCity 311
7/27/20263840 W 86TH PLAshburn18Completed9 daysInternetCity 311
7/22/20265033 W SUNNYSIDE AVEPortage Park45Completed9 daysPhone CallCity 311
8/11/20269227 S EMERALD AVEWashington Heights21Completed9 daysPhone CallCity 311
9/17/20251808 W HADDON AVEWest Town1Completed9 daysInternetCity 311
7/23/20254016 N CLARK STLake View46Completed9 daysAlderman's OfficeCity 311
9/24/20252828 N KEDZIE AVEAvondale35Completed9 daysInternetCity 311
10/13/20254921 N CENTRAL PARK AVEAlbany Park33Completed9 daysMobile DeviceCity 311
6/29/20265000 S SEELEY AVENew City15Completed9 daysPhone CallCity 311
10/13/20261714 N SPAULDING AVEHumboldt Park26Completed9 daysInternetCity 311
7/15/20262628 S KEDZIE AVESouth Lawndale25Completed9 daysMobile DeviceCity 311
7/29/20253961 W BARRY AVEAvondale31Completed9 daysPhone CallCity 311
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