RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4307 locations in the last 30 days (4497 reports) · Last sighting 13 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/3/20255645 W 63RD PLClearing13Completed0 daysInternetCity 311
12/3/20255637 W 63RD PLClearing13Completed0 daysInternetCity 311
12/3/20255636 W 64TH STClearing13Completed0 daysInternetCity 311
12/3/2025825 N WINCHESTER AVEWest Town36Completed1 dayInternetCity 311
12/3/20253417 S RACINE AVEBridgeport11Completed0 daysInternetCity 311
12/4/20257213 S MOZART STChicago Lawn18Completed0 daysInternetCity 311
12/4/20254216 S MICHIGAN AVEGrand Boulevard3Completed0 daysPhone CallCity 311
12/4/20251905 N KOSTNER AVEHermosa26Completed1 dayInternetCity 311
12/4/20255103 S MONITOR AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
12/4/20255606 S MERRIMAC AVEGarfield Ridge13Completed0 daysInternetCity 311
12/4/20252650 W 23RD STSouth Lawndale25Completed0 daysInternetCity 311
12/4/20257722 S PHILLIPS AVESouth Shore7Completed1 dayMobile DeviceCity 311
12/4/20257643 W HORTENSE AVENorwood Park41Completed1 dayPhone CallCity 311
12/4/20252740 W THOMAS STWest Town36Completed1 dayInternetCity 311
12/4/2025129 N LEAVITT STNear West Side27Completed1 dayInternetCity 311
12/4/20252338 S CANAL STArmour Square11Completed1 dayInternetCity 311
12/4/20251117 N CENTRAL PARK AVEHumboldt Park36Completed0 daysPhone CallCity 311
12/4/20258252 S ADA STAuburn Gresham17Completed1 dayPhone CallCity 311
12/4/20251730 N LOREL AVEAustin37Completed1 dayMobile DeviceCity 311
12/4/202510800 S SACRAMENTO AVEMount Greenwood19Completed1 dayAlderman's OfficeCity 311
12/4/20253125 N OCONTO AVEDunning29Completed1 dayInternetCity 311
12/4/20253343 N KEDVALE AVEIrving Park30Completed1 dayInternetCity 311
12/4/20254115 W HENDERSON STIrving Park30Completed1 dayInternetCity 311
12/4/20254414 W ARMITAGE AVEHermosa26Completed1 dayInternetCity 311
12/4/20259901 S SANGAMON STWashington Heights21Completed1 dayPhone CallCity 311
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