RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4613 locations in the last 30 days (4794 reports) · Last sighting 12 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
4/24/20261055 N MENARD AVEAustin29Completed3 daysPhone CallCity 311
5/17/20262155 N BELL AVELogan Square32Completed3 daysInternetCity 311
4/11/2026745 W WRIGHTWOOD AVELincoln Park43Completed3 daysMobile DeviceCity 311
1/9/20266217 S MASSASOIT AVEClearing13Completed3 daysAlderman's OfficeCity 311
10/19/20259026 S YATES AVECalumet Heights7Completed3 daysPhone CallCity 311
10/7/20253153 S UNION AVEBridgeport11Completed3 daysInternetCity 311
1/9/20264923 N SPRINGFIELD AVEAlbany Park39Completed3 daysPhone CallCity 311
4/24/20265138 W CHICAGO AVEAustin37Completed3 daysPhone CallCity 311
5/26/20262302 W LUNT AVEWest Ridge50Completed3 daysPhone CallCity 311
11/14/20251821 W FARWELL AVERogers Park49Completed3 daysPhone CallCity 311
6/2/20266823 S THROOP STWest Englewood17Completed3 daysPhone CallCity 311
5/4/20265355 W GRACE STPortage Park30Completed3 daysPhone CallCity 311
10/28/20258251 W IRVING PARK RDDunning38Completed3 daysMobile DeviceCity 311
5/18/20263215 N OTTAWA AVEDunning38Completed3 daysMobile DeviceCity 311
1/10/20266708 N ROCKWELL STWest Ridge50Completed3 daysMobile DeviceCity 311
11/25/20253039 W AINSLIE STAlbany Park33Completed3 daysPhone CallCity 311
8/3/20255823 W AINSLIE STJefferson Park45Completed3 daysInternetCity 311
6/1/20265518 W FARRAGUT AVEJefferson Park45Completed3 daysInternetCity 311
11/25/20252137 N DAMEN AVELogan Square32Completed3 daysInternetCity 311
5/18/20265932 S PARKSIDE AVEClearing13Completed3 daysInternetCity 311
1/9/20261650 S HAMLIN AVENorth Lawndale24Completed3 daysAlderman's OfficeCity 311
10/19/20255647 W BERENICE AVEPortage Park38Completed3 daysMobile DeviceCity 311
10/27/20252741 S HARDING AVESouth Lawndale22Completed3 daysInternetCity 311
3/7/20264553 N WOLCOTT AVELincoln Square47Completed3 daysMobile DeviceCity 311
5/8/20265801 S ARTESIAN AVEGage Park15Completed3 daysPhone CallCity 311
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