RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4633 locations in the last 30 days (4782 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
9/4/20251645 W WINONA STUptown40Completed13 daysPhone CallCity 311
9/4/2025653 W 61ST STEnglewood16Completed11 daysPhone CallCity 311
9/4/20257915 S EVANS AVEChatham6Completed8 daysPhone CallCity 311
9/4/20255224 W NELSON STBelmont Cragin31Completed14 daysInternetCity 311
9/4/20252360 E 70TH STSouth Shore5Completed11 daysInternetCity 311
9/4/2025653 W 61ST STEnglewood16Completed11 daysPhone CallCity 311
9/4/20253050 N OAKLEY AVENorth Center32Completed12 daysInternetCity 311
9/4/20255825 W PATTERSON AVEPortage Park38Completed12 daysMobile DeviceCity 311
9/4/20255004 W WAVELAND AVEPortage Park30Completed11 daysMobile DeviceCity 311
9/4/20254332 N MARMORA AVEPortage Park38Completed11 daysInternetCity 311
9/4/20255213 S CENTRAL AVEGarfield Ridge23Completed8 daysPhone CallCity 311
9/4/20255742 W SCHOOL STPortage Park30Completed14 daysInternetCity 311
9/4/20257345 N DAMEN AVERogers Park49Completed8 daysInternetCity 311
9/4/20252517 W COYLE AVEWest Ridge40Completed13 daysPhone CallCity 311
9/4/2025824 W ARMITAGE AVELincoln Park43Completed11 daysInternetCity 311
9/4/20256108 N HOYNE AVEWest Ridge40Completed13 daysMobile DeviceCity 311
9/4/20256306 W 63RD PLClearing13Completed13 daysMobile DeviceCity 311
9/4/20252529 N CLARK STLincoln Park43Completed11 daysMobile DeviceCity 311
9/4/20253941 W 66TH PLWest Lawn23Completed13 daysPhone CallCity 311
9/4/20253942 W MARQUETTE RDWest Lawn23Completed13 daysPhone CallCity 311
9/4/20253434 W BELMONT AVEAvondale35Completed11 daysMobile DeviceCity 311
9/4/20254116 N WESTERN AVENorth Center47Completed12 daysMobile DeviceCity 311
9/4/20252136 W SHAKESPEARE AVELogan Square32Completed13 daysMobile DeviceCity 311
9/4/20252509 N HALSTED STLincoln Park43Completed11 daysInternetCity 311
9/4/20254614 N KENTON AVEIrving Park39Completed14 daysMobile DeviceCity 311
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