RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4479 locations in the last 30 days (4652 reports) · Last sighting 19 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
8/2/20262312 W CULLERTON STLower West Side25Completed9 daysPhone CallCity 311
7/13/20265828 W DAKIN STPortage Park38Completed9 daysAlderman's OfficeCity 311
7/29/20263142 W CULLOM AVEIrving Park33Completed9 daysPhone CallCity 311
8/19/20262839 S CENTRAL PARK AVESouth Lawndale22Completed9 daysPhone CallCity 311
7/12/20262014 N MILWAUKEE AVELogan Square1Completed9 daysInternetCity 311
9/22/20254032 W WELLINGTON AVEAvondale31Completed9 daysAlderman's OfficeCity 311
9/15/20255543 S THROOP STWest Englewood16Completed9 daysPhone CallCity 311
9/15/20256400 S LAMON AVEClearing13Completed9 daysAlderman's OfficeCity 311
9/27/20252543 N NEWCASTLE AVEMontclare36Completed9 daysMobile DeviceCity 311
7/21/20266422 N WAYNE AVERogers Park49Completed9 daysInternetCity 311
8/4/20256715 S KOSTNER AVEWest Lawn23Completed9 daysPhone CallCity 311
8/6/20251453 N GREENVIEW AVEWest Town1Completed9 daysAlderman's OfficeCity 311
9/13/20255359 S CHRISTIANA AVEGage Park14Completed9 daysInternetCity 311
9/13/20261728 N SAWYER AVEHumboldt Park26Completed9 daysMobile DeviceCity 311
8/27/20253332 S ARCHER AVEMcKinley Park12Completed9 daysInternetCity 311
10/6/20252300 N KARLOVHermosa35Completed9 daysSalesforce Mobile AppCity 311
9/3/20255520 S HARPER AVEHyde Park5Completed9 daysInternetCity 311
8/26/20264215 S CAMPBELL AVEBrighton Park12Completed9 daysPhone CallCity 311
9/22/20251726 N SPAULDING AVEHumboldt Park26Completed9 daysInternetCity 311
7/13/20263829 N PONTIAC AVEDunning38Completed9 daysPhone CallCity 311
6/30/20264259 N MASON AVEPortage Park38Completed9 daysInternetCity 311
7/29/20265231 S CICERO AVEGarfield Ridge23Completed9 daysPhone CallCity 311
9/23/20258 E 90TH STChatham6Completed9 daysPhone CallCity 311
9/2/20251010 N KEYSTONE AVEHumboldt Park37Completed9 daysAlderman's OfficeCity 311
9/9/20251723 W ESTES AVERogers Park49Completed9 daysAlderman's OfficeCity 311
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