RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4419 locations in the last 30 days (4582 reports) · Last sighting 24 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

57,418 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/17/20262421 N RACINE AVELincoln Park43Completed10 daysMobile DeviceCity 311
9/7/20255805 S MERRIMAC AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
8/26/20253226 N CLIFTON AVELake View44Completed10 daysInternetCity 311
7/29/20251244 W CHICAGO AVEWest Town27Completed10 daysInternetCity 311
9/19/20252896 S ARCHER AVEBridgeport11Completed10 daysInternetCity 311
10/13/20267400 S INDIANA AVEGreater Grand Crossing6Completed10 daysPhone CallCity 311
10/5/20251715 N TRIPP AVEHumboldt Park26Completed10 daysInternetCity 311
8/19/20255644 S KOLIN AVEWest Elsdon13Completed10 daysPhone CallCity 311
9/16/20252103 N PULASKILogan Square35Completed10 daysSalesforce Mobile AppCity 311
8/26/20254021 W ADDISON STIrving Park30Completed10 daysAlderman's OfficeCity 311
9/29/20266201 N KILDARE AVEForest Glen39Completed10 daysPhone CallCity 311
7/4/20264746 N PAULINA STUptown47Completed10 daysInternetCity 311
8/31/20264400 N DOVER STUptown46Completed10 daysInternetCity 311
9/27/20255052 N OAK PARK AVENorwood Park41Completed10 daysInternetCity 311
8/15/20253414 W LE MOYNE STHumboldt Park26Completed10 daysMobile DeviceCity 311
10/17/20253525 W 64TH STChicago Lawn14Completed10 daysPhone CallCity 311
9/14/20253063 N HAUSSEN CTAvondale31Completed10 daysInternetCity 311
6/28/20262871 E 91ST STSouth Chicago7Completed10 daysInternetCity 311
9/27/20254710 N SHERIDAN RDUptown46Completed10 daysMobile DeviceCity 311
10/5/20251706 N SPRINGFIELD AVEHumboldt Park26Completed10 daysInternetCity 311
9/15/20254110 N LAVERGNE AVEPortage Park38Completed10 daysMobile DeviceCity 311
7/28/20263810 N FRANCISCO AVEIrving Park33Completed10 daysMobile DeviceCity 311
8/16/20262931 W JARVIS AVEWest Ridge50Completed10 daysMobile DeviceCity 311
9/16/20252102 N PULASKIHermosa35Completed10 daysSalesforce Mobile AppCity 311
8/26/20253540 N PULASKI RDIrving Park30Completed10 daysAlderman's OfficeCity 311
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