RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days 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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/28/20256951 S EMERALD AVEEnglewood6Completed5 daysInternetCity 311
7/9/20266951 S EMERALD AVEEnglewood6Completed15 daysInternetCity 311
6/15/20266951 S EMERALD AVEEnglewood6Completed1 dayInternetCity 311
5/11/20266951 N RIDGE BLVDWest Ridge40Completed3 daysPhone CallCity 311
7/30/20266951 N PAULINA STRogers Park49Completed12 daysInternetCity 311
9/23/20266950 W ARGYLE STNorwood Park41Open—Phone CallCity 311
10/30/20256950 S PERRY AVEGreater Grand Crossing6Completed4 daysPhone CallCity 311
8/4/20256950 N OAKLEY AVEWest Ridge40Completed1 dayPhone CallCity 311
8/18/20256949 W MELROSE STDunning36Completed9 daysMobile DeviceCity 311
8/11/20256949 W 64TH STClearing13Completed13 daysInternetCity 311
7/31/20256948 W 63RD PLClearing13Completed13 daysMobile DeviceCity 311
7/4/20266948 S CAMPBELL AVEChicago Lawn16Completed5 daysMobile DeviceCity 311
8/7/20266948 S BELL AVEChicago Lawn17Completed7 daysPhone CallCity 311
7/17/20266947 W ARCHER AVEGarfield Ridge13Completed3 daysMobile DeviceCity 311
7/29/20266947 W ARCHER AVEGarfield Ridge13Completed13 daysMobile DeviceCity 311
7/20/20266947 W ARCHER AVEGarfield Ridge13Completed2 daysAlderman's OfficeCity 311
4/8/20266947 S PEORIA STEnglewood16Completed1 dayAlderman's OfficeCity 311
8/6/20266947 S MICHIGAN AVEGreater Grand Crossing6Completed13 daysMobile DeviceCity 311
7/18/20266947 N CLARK STRogers Park49Completed6 daysPhone CallCity 311
5/5/20266946 S FAIRFIELD AVEChicago Lawn17Completed3 daysPhone CallCity 311
4/25/20266945 W FARRAGUT AVENorwood Park41Completed4 daysInternetCity 311
9/15/20266945 W FARRAGUT AVENorwood Park41Completed15 daysInternetCity 311
3/26/20266945 W FARRAGUT AVENorwood Park41Completed1 dayInternetCity 311
7/29/20256945 W FARRAGUT AVENorwood Park41Completed6 daysInternetCity 311
11/5/20256945 S PEORIA STEnglewood16Completed1 dayPhone CallCity 311
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