RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4377 locations in the last 30 days (4560 reports) · Last sighting 21 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/19/20251346 W CULLERTON STLower West Side25Completed9 daysMobile DeviceCity 311
7/23/20252219 N KENNETH AVEHermosa26Completed9 daysMobile DeviceCity 311
7/14/2026811 W BRADLEY PLLake View46Completed9 daysInternetCity 311
9/9/20255018 W BYRON STPortage Park45Completed9 daysMobile DeviceCity 311
6/16/20265813 W MONTROSE AVEPortage Park38Completed9 daysInternetCity 311
9/3/20251819 S KOMENSKY AVENorth Lawndale24Completed9 daysPhone CallCity 311
10/11/20251813 W HADDON AVEWest Town1Completed9 daysMobile DeviceCity 311
10/8/20255049 N NAGLE AVEJefferson Park41Completed9 daysMobile DeviceCity 311
9/16/2025839 W 33RD PLBridgeport11Completed9 daysInternetCity 311
8/5/20263008 N OLEANDER AVEDunning29Completed9 daysMobile DeviceCity 311
8/13/20257131 N MELVINA AVEForest Glen45Completed9 daysMobile DeviceCity 311
10/6/20252819 W SHAKESPEARE AVELogan Square1Completed9 daysInternetCity 311
10/1/20254705 W BYRON STPortage Park45Completed9 daysAlderman's OfficeCity 311
8/26/20261359 W 115TH STWest Pullman21Completed9 daysMobile DeviceCity 311
7/22/20265413 S HONORE STNew City16Completed9 daysInternetCity 311
10/14/2026331 N MAYFIELD AVEAustin29Completed9 daysMobile DeviceCity 311
6/27/20262944 W ARMITAGE AVELogan Square1Completed9 daysInternetCity 311
10/11/20254139 N MELVINA AVEPortage Park38Completed9 daysMobile DeviceCity 311
9/17/20252849 N HAMLIN AVEAvondale35Completed9 daysMobile DeviceCity 311
9/2/20252324 W HARRISON STNear West Side28Completed9 daysInternetCity 311
7/28/20252510 W IOWA STWest Town36Completed9 daysInternetCity 311
7/29/20252113 N CICERO AVEBelmont Cragin26Completed9 daysAlderman's OfficeCity 311
10/18/20264705 S HAMLIN AVEArcher Heights14Completed9 daysMobile DeviceCity 311
6/30/20266737 W IRVING PARK RDDunning38Completed9 daysInternetCity 311
9/23/20253312 N NEVA AVEDunning38Completed9 daysInternetCity 311
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