RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4517 locations in the last 30 days (4690 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/25/20265218 N LIANO AVEJefferson Park45Completed3 daysInternetCity 311
7/24/20265928 S CALUMET AVEWashington Park20Completed3 daysInternetCity 311
6/1/20263030 W CHASE AVEWest Ridge50Completed3 daysPhone CallCity 311
3/9/20264842 W CONGRESS PKWYAustin29Completed3 daysMobile DeviceCity 311
5/26/20266509 S PEORIA STEnglewood16Completed3 daysAlderman's OfficeCity 311
3/27/20265500 W CORNELIA AVEPortage Park30Completed3 daysAlderman's OfficeCity 311
4/27/20268033 S SAWYER AVEAshburn18Completed3 daysPhone CallCity 311
10/14/20255411 N ARTESIAN AVELincoln Square40Completed3 daysMobile DeviceCity 311
9/1/20267343 W BELMONT AVEDunning29Completed3 daysInternetCity 311
5/29/20262949 W 55TH STGage Park14Completed3 daysInternetCity 311
3/14/20267103 W FARRAGUT AVENorwood Park41Completed3 daysPhone CallCity 311
3/6/20263051 N NORDICA AVEMontclare29Completed3 daysMobile DeviceCity 311
4/24/20261116B W MORSE AVERogers Park49Completed3 daysInternetCity 311
3/27/20266151 W BARRY AVEBelmont Cragin30Completed3 daysInternetCity 311
5/4/20269635 S LOWE AVEWashington Heights9Completed3 daysInternetCity 311
4/24/20265109 W ALTGELD STBelmont Cragin31Completed3 daysMobile DeviceCity 311
6/2/20268022 S BISHOP STAuburn Gresham17Completed3 daysInternetCity 311
10/28/20253010 W 55TH STGage Park14Completed3 daysPhone CallCity 311
4/17/20264639 S WOOD STNew City15Completed3 daysPhone CallCity 311
2/21/20264310 S BERKELEY AVEKenwood4Completed3 daysPhone CallCity 311
6/22/2026814 W BUCKINGHAM PLLake View44Completed3 daysMobile DeviceCity 311
3/27/20265836 S MULLIGAN AVEGarfield Ridge13Completed3 daysInternetCity 311
3/21/20262814 W 21ST STSouth Lawndale25Completed3 daysInternetCity 311
2/6/20263683 N ELSTON AVEIrving Park33Completed3 daysInternetCity 311
8/31/20266222 W PATTERSON AVEDunning38Completed3 daysPhone CallCity 311
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