RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4639 locations in the last 30 days (4788 reports) · Last sighting 20 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/20251700 W WALLEN AVERogers Park49Completed12 daysPhone CallCity 311
7/29/202611117 S SPAULDING AVEMount Greenwood19Completed12 daysAlderman's OfficeCity 311
10/4/20255702 W WILSON AVEPortage Park38Completed12 daysInternetCity 311
7/18/20263814W W 105TH STMount Greenwood19Completed12 daysMobile DeviceCity 311
8/13/20265515 S NORMANDY AVEGarfield Ridge13Completed12 daysPhone CallCity 311
9/27/20267140 S CORNELL AVESouth Shore7Completed12 daysPhone CallCity 311
8/21/20251136 W LAWRENCE AVEUptown46Completed12 daysInternetCity 311
7/17/20261858 W PERSHING RDMcKinley Park12Completed12 daysMobile DeviceCity 311
8/7/20255431 N LINDER AVEJefferson Park45Completed12 daysMobile DeviceCity 311
7/15/20262308 W NORTH AVEWest Town32Completed12 daysMobile DeviceCity 311
8/29/20251717 N MONITOR AVEAustin29Completed12 daysInternetCity 311
9/11/20251112 W COLUMBIA AVERogers Park49Completed12 daysMobile DeviceCity 311
8/29/20261641 N FRANCISCO AVEWest Town26Completed12 daysMobile DeviceCity 311
8/21/20264943 N HAMLIN AVEAlbany Park39Completed12 daysInternetCity 311
9/26/20264730 N DOVER STUptown46Completed12 daysInternetCity 311
8/13/20265315 S LATROBE AVEGarfield Ridge23Completed12 daysPhone CallCity 311
10/9/20254740 N SAWYER AVEAlbany Park33Completed12 daysAlderman's OfficeCity 311
8/22/20261134 W PATTERSON AVELake View44Completed12 daysMobile DeviceCity 311
8/21/20261845 W OHIO STWest Town36Completed12 daysInternetCity 311
8/27/20261421 W 17TH STLower West Side25Completed12 daysMobile DeviceCity 311
8/14/20251746 W 21ST STLower West Side25Completed12 daysAlderman's OfficeCity 311
8/27/20261131 W DRUMMOND PLLincoln Park43Completed12 daysMobile DeviceCity 311
7/8/20265216 W BERENICE AVEPortage Park30Completed12 daysMobile DeviceCity 311
8/29/20251350 W HUBBARD STWest Town1Completed12 daysInternetCity 311
9/27/20263248 N LONG AVEPortage Park30Completed12 daysInternetCity 311
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