RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4224 locations in the last 30 days (4377 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/27/2026214 N KOLIN AVEWest Garfield Park28Completed10 daysPhone CallCity 311
7/10/20261800 N SAWYER AVELogan Square26Completed10 daysPhone CallCity 311
9/19/20255156 N LONG AVEJefferson Park45Completed10 daysPhone CallCity 311
9/25/20261220 N WASHTENAW AVEWest Town26Completed10 daysInternetCity 311
9/22/20263045 W JARLATH STWest Ridge50Completed10 daysAlderman's OfficeCity 311
9/14/20265524 S KOSTNER AVEWest Elsdon13Completed10 daysPhone CallCity 311
8/26/20252320 W 21ST STLower West Side25Completed10 daysAlderman's OfficeCity 311
9/11/20262625 N DAYTON STLincoln Park43Completed10 daysMobile DeviceCity 311
8/10/20265401W W HADDON AVEAustin37Completed10 daysPhone CallCity 311
8/15/20253608 W WOLFRAM STAvondale35Completed10 daysInternetCity 311
9/8/20264213 N DAMENNorth Center47Completed10 daysSalesforce Mobile AppCity 311
9/7/20254929 W ARGYLE STForest Glen45Completed10 daysMobile DeviceCity 311
9/9/20254526 N PAULINA STUptown47Completed10 daysMobile DeviceCity 311
8/24/20263035 N LONG AVEBelmont Cragin31Completed10 daysInternetCity 311
8/23/20262019 S THROOP STLower West Side25Completed10 daysInternetCity 311
8/4/2026314 W 107TH PLRoseland21Completed10 daysInternetCity 311
9/9/20256636 S MAY STEnglewood16Completed10 daysPhone CallCity 311
8/18/20256018 N DAMEN AVEWest Ridge40Completed10 daysInternetCity 311
9/4/20266560 N HARLEM AVEEdison Park41Completed10 daysInternetCity 311
7/31/20268202 S ESCANABA AVESouth Chicago7Completed10 daysInternetCity 311
9/7/20262734 W FARRAGUT AVELincoln Square40Completed10 daysInternetCity 311
9/1/202610509 S LA SALLE STRoseland9Completed10 daysPhone CallCity 311
10/10/20251103 N RIDGEWAY AVEHumboldt Park27Completed10 daysMobile DeviceCity 311
9/1/202612439 S UNION AVEWest Pullman9Completed10 daysPhone CallCity 311
8/3/20261532 W NELSON STLake View32Completed10 daysMobile DeviceCity 311
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