RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4515 locations in the last 30 days (4704 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/23/20261934 W WABANSIA AVEWest Town32Completed3 daysPhone CallCity 311
3/28/2026907 W ADDISON STLake View44Completed3 daysInternetCity 311
5/26/20269915 S PEORIA STWashington Heights21Completed3 daysPhone CallCity 311
12/26/20256024 W 64TH STClearing13Completed3 daysMobile DeviceCity 311
6/1/20262030 W MOFFAT STLogan Square32Completed3 daysMobile DeviceCity 311
10/16/20264323 S KEDVALE AVEArcher Heights14Completed3 daysAlderman's OfficeCity 311
3/27/20263465 N KEATING AVEPortage Park30Completed3 daysMobile DeviceCity 311
4/24/20267840 S EMERALD AVEAuburn Gresham17Completed3 daysPhone CallCity 311
11/28/2025932 N CALIFORNIA AVEWest Town26Completed3 daysInternetCity 311
6/15/20263033 N SPAULDING AVEAvondale35Completed3 daysInternetCity 311
3/6/20266823 W 64TH PLClearing13Completed3 daysInternetCity 311
3/30/20262727 W WELLINGTON AVEAvondale35Completed3 daysPhone CallCity 311
9/28/202612301 S UNION AVEWest Pullman9Completed3 daysPhone CallCity 311
3/14/20265314 W CORNELIA AVEPortage Park30Completed3 daysPhone CallCity 311
7/29/20256449 S NORMANDY AVEClearing13Completed3 daysInternetCity 311
4/3/20262328 N KENNETH AVEHermosa31Completed3 daysPhone CallCity 311
6/22/20267201 S AVERS AVEWest Lawn23Completed3 daysAlderman's OfficeCity 311
10/23/20266604 N SIOUX AVEForest Glen45Completed3 daysPhone CallCity 311
5/15/20263009 S THROOP STBridgeport11Completed3 daysInternetCity 311
5/8/20265501 S WASHTENAW AVEGage Park15Completed3 daysAlderman's OfficeCity 311
11/14/20255628 S WINCHESTER AVEWest Englewood15Completed3 daysPhone CallCity 311
6/1/20265350 W ARGYLE STJefferson Park45Completed3 daysMobile DeviceCity 311
9/11/20262244 W CARMEN AVELincoln Square40Completed3 daysPhone CallCity 311
6/1/2026416 E 48TH PLGrand Boulevard3Completed3 daysInternetCity 311
4/24/20263944 W 65TH PLWest Lawn23Completed3 daysInternetCity 311
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