RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4663 locations in the last 30 days (4821 reports) · Last sighting 23 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/30/20261555 W PEARSON STWest Town1Completed12 daysMobile DeviceCity 311
2/1/20261556 W 100TH PLBeverly19Completed1 dayInternetCity 311
8/12/20251557 W BARRY AVELake View32Completed9 daysAlderman's OfficeCity 311
1/16/20261557 W DIVERSEY PKWYLincoln Park32Completed4 daysInternetCity 311
10/6/20261559 N WELLS STNear North Side2Open—Phone CallCity 311
10/6/20261559 N WELLS STNear North Side2Open—Phone CallCity 311
10/6/20261559 W NORTH AVEWest Town1Open—InternetCity 311
3/19/2026155 N LOCKWOOD AVEAustin37Completed1 dayPhone CallCity 311
3/15/2026155 N LOCKWOOD AVEAustin37Completed3 daysPhone CallCity 311
3/2/2026155 N WACKER DRLoop42Completed1 dayMobile DeviceCity 311
7/21/2026155 N WOOD STNear West Side27Completed9 daysInternetCity 311
8/9/2026155 W CERMAK RDNear South Side3Completed1 dayInternetCity 311
8/3/2026155 W VAN BUREN STLoop34Completed9 daysInternetCity 311
10/1/20251560 N SANDBURG TERNear North Side2Completed9 daysInternetCity 311
9/17/20261561 N WELLSNear North Side2Completed0 daysSalesforce Mobile AppCity 311
10/18/20251561 S CLARK STNear South Side3Completed5 daysInternetCity 311
3/28/20261567 S KEDZIE AVENorth Lawndale24Completed2 daysInternetCity 311
4/21/2026156 E SUPERIORNear North Side2Completed2 daysSalesforce Mobile AppCity 311
7/21/2026156 N HERMITAGE AVENear West Side27Completed9 daysInternetCity 311
7/12/2026156 N LOCKWOOD AVEAustin37Completed11 daysMobile DeviceCity 311
6/9/2026156 N LOCKWOOD AVEAustin37Completed6 daysInternetCity 311
6/22/2026156 N LOCKWOOD AVEAustin37Completed3 daysMobile DeviceCity 311
11/22/2025156 N MAYFIELD AVEAustin29Completed3 daysPhone CallCity 311
10/5/2025156 N MAYFIELD AVEAustin29Completed4 daysPhone CallCity 311
2/18/2026156 N MAYFIELD AVEAustin29Completed1 dayPhone CallCity 311
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