RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4544 locations in the last 30 days (4691 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/19/20266239 W FLETCHER STBelmont Cragin30Completed12 daysInternetCity 311
9/8/20266239 W FLETCHER STBelmont Cragin30Completed14 daysMobile DeviceCity 311
10/7/20256239 W BERENICE AVEDunning38Completed10 daysPhone CallCity 311
7/7/20266239 S WINCHESTER AVEWest Englewood16Completed8 daysMobile DeviceCity 311
9/27/20256239 S MAJOR AVEClearing13Completed12 daysMobile DeviceCity 311
9/9/20266239 N WESTERN AVEWest Ridge50Completed5 daysInternetCity 311
9/30/20256239 N NAPER AVENorwood Park45Completed9 daysInternetCity 311
11/23/20256239 N NAPER AVENorwood Park45Completed2 daysInternetCity 311
10/25/20256239 N NAPER AVENorwood Park45Completed6 daysPhone CallCity 311
4/13/20266239 N FAIRFIELD AVEWest Ridge50Completed0 daysMobile DeviceCity 311
8/10/20266239 N CALIFORNIA AVEWest Ridge50Completed8 daysMobile DeviceCity 311
8/3/20266238 W BARRY AVEBelmont Cragin30Completed10 daysMobile DeviceCity 311
7/31/20256238 W BARRY AVEBelmont Cragin30Completed12 daysMobile DeviceCity 311
6/30/20266238 W BARRY AVEBelmont Cragin30Completed6 daysMobile DeviceCity 311
4/2/20266238 W BARRY AVEBelmont Cragin30Completed1 dayMobile DeviceCity 311
10/7/20256238 W BARRY AVEBelmont Cragin30Completed7 daysMobile DeviceCity 311
9/10/20266238 W BARRY AVEBelmont Cragin30Completed15 daysMobile DeviceCity 311
7/16/20266237 W WAVELAND AVEDunning38Completed14 daysMobile DeviceCity 311
2/17/20266237 W 63RD STClearing13Completed2 daysPhone CallCity 311
8/8/20256237 W 63RD STClearing13Completed12 daysAlderman's OfficeCity 311
8/26/20256237 S LAFLIN STWest Englewood16Completed14 daysInternetCity 311
9/26/20256237 S EVANS AVEWoodlawn20Completed7 daysPhone CallCity 311
4/28/20266237 N NAGLE AVENorwood Park39Completed1 dayInternetCity 311
9/26/20256236 W PATTERSON AVEDunning38Completed10 daysPhone CallCity 311
8/2/20256236 W NORWOOD STNorwood Park39Completed16 daysMobile DeviceCity 311
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