RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4251 locations in the last 30 days (4433 reports) · Last sighting yesterday

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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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/28/2025952 N WOLCOTT AVEWest Town36Completed3 daysPhone CallCity 311
11/28/20252642 W SUPERIOR STWest Town36Completed3 daysPhone CallCity 311
11/28/20257754 W BELMONT AVEDunning38Completed3 daysPhone CallCity 311
11/28/20257029 W HENDERSON STDunning38Completed3 daysPhone CallCity 311
11/28/20256327 N MAGNOLIA AVEEdgewater48Completed4 daysPhone CallCity 311
11/28/20253239 N OSAGE AVEDunning38Completed3 daysPhone CallCity 311
11/28/20252112 N HUDSON AVELincoln Park43Completed3 daysPhone CallCity 311
11/28/20252751 N SEMINARY AVELincoln Park43Completed3 daysPhone CallCity 311
11/28/20255545 S HOYNE AVEWest Englewood15Completed3 daysPhone CallCity 311
11/28/20255109 W BYRON STPortage Park30Completed4 daysPhone CallCity 311
11/28/20251300 S OAKLEY AVENear West Side28Completed3 daysMobile DeviceCity 311
11/28/20255535 N MASON AVEJefferson Park45Completed4 daysInternetCity 311
11/28/20252506 N NEW ENGLAND AVEMontclare36Completed3 daysPhone CallCity 311
11/28/20259531 S UNIVERSITY AVEPullman8Completed4 daysMobile DeviceCity 311
11/28/20255153 S HARDING AVEWest Elsdon23Completed3 daysPhone CallCity 311
11/28/20254418 N MAPLEWOOD AVELincoln Square47Completed3 daysInternetCity 311
11/28/20255828 N MOBILE AVENorwood Park45Completed5 daysMobile DeviceCity 311
11/28/20252029 N RACINE AVELincoln Park43Completed4 daysMobile DeviceCity 311
11/28/2025932 N CALIFORNIA AVEWest Town26Completed3 daysInternetCity 311
11/28/20252033 N RACINE AVELincoln Park43Completed4 daysMobile DeviceCity 311
11/28/20255731 W 64TH PLClearing13Completed4 daysMobile DeviceCity 311
11/28/20254807 S ARCHER AVEArcher Heights14Completed3 daysInternetCity 311
11/28/20256534 S OAKLEY AVEChicago Lawn16Completed3 daysPhone CallCity 311
11/28/20254159 W ADDISON STIrving Park30Completed4 daysInternetCity 311
11/28/20256951 S EMERALD AVEEnglewood6Completed5 daysInternetCity 311
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