RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4780 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/22/20253844 S LOWE AVEBridgeport11Completed12 daysInternetCity 311
7/22/20264445 N CHRISTIANA AVEAlbany Park33Completed12 daysMobile DeviceCity 311
8/27/20255318 W LAWRENCE AVEJefferson Park45Completed12 daysMobile DeviceCity 311
9/5/20263310 N NEVA AVEDunning38Completed12 daysInternetCity 311
10/2/20252598 N MILWAUKEE AVELogan Square35Completed12 daysMobile DeviceCity 311
8/15/20252058 W BIRCHWOOD AVERogers Park49Completed12 daysMobile DeviceCity 311
7/31/20255108 S LINDER AVEGarfield Ridge23Completed12 daysMobile DeviceCity 311
8/16/20252533 W FARRAGUT AVELincoln Square40Completed12 daysInternetCity 311
8/15/20252053 N KEELER AVEHermosa35Completed12 daysInternetCity 311
8/15/20261900 N HOWE STLincoln Park43Completed12 daysPhone CallCity 311
9/5/20265316 S MULLIGAN AVEGarfield Ridge23Completed12 daysMobile DeviceCity 311
8/14/2025534 N SAWYER AVEHumboldt Park27Completed12 daysInternetCity 311
8/21/20262940 W EASTWOOD AVEAlbany Park40Completed12 daysInternetCity 311
8/2/20251101 N CALIFORNIA AVEWest Town36Completed12 daysInternetCity 311
7/12/20262134 W IRVING PARK RDNorth Center47Completed12 daysInternetCity 311
8/27/20251900 N OAKLEY AVELogan Square32Completed12 daysInternetCity 311
9/18/20251159 S S BRANCH CHICAGO RIVERLoop28Completed12 daysInternetCity 311
9/23/20263546 N PITTSBURGH AVEDunning38Completed12 daysMobile DeviceCity 311
8/2/20269335 S LAFLIN STWashington Heights21Completed12 daysPhone CallCity 311
8/19/20261515 W HADDON AVEWest Town1Completed12 daysMobile DeviceCity 311
8/14/20252850 W BERWYN AVELincoln Square39Completed12 daysMobile DeviceCity 311
7/30/20251706 N LONG AVEAustin37Completed12 daysPhone CallCity 311
8/19/20261547 W THOMAS STWest Town1Completed12 daysMobile DeviceCity 311
8/22/202510529 S CLAREMONT AVEBeverly19Completed12 daysMobile DeviceCity 311
9/12/20262031 N HOWE STLincoln Park43Completed12 daysMobile DeviceCity 311
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