RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4547 locations in the last 30 days (4694 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20257215 W MYRTLE AVENorwood Park41Completed10 daysInternetCity 311
12/17/20257104 W BERWYN AVENorwood Park41Completed1 dayInternetCity 311
8/30/20256666 W HAYES AVENorwood Park41Completed12 daysPhone CallCity 311
4/25/20266945 W FARRAGUT AVENorwood Park41Completed4 daysInternetCity 311
8/25/20257115 W SUMMERDALE AVENorwood Park41Completed11 daysPhone CallCity 311
8/28/20256051 N NASSAU AVENorwood Park45Completed13 daysAlderman's OfficeCity 311
8/26/20257137 W SUMMERDALE AVENorwood Park41Completed10 daysAlderman's OfficeCity 311
9/11/20255734 N AUSTIN AVENorwood Park45Completed1 dayPhone CallCity 311
9/29/20257263 W MYRTLE AVENorwood Park41Completed8 daysInternetCity 311
12/18/20255819 N MELVINA AVENorwood Park45Completed1 dayInternetCity 311
10/8/20256330 W HOLBROOK STNorwood Park39Completed6 daysAlderman's OfficeCity 311
4/13/20267013 W SUMMERDALE AVENorwood Park41Completed2 daysInternetCity 311
9/30/20257211 W MYRTLE AVENorwood Park41Completed7 daysMobile DeviceCity 311
12/17/20255200 N ORIOLE AVENorwood Park41Completed1 dayPhone CallCity 311
12/28/20256148 N MELVINA AVENorwood Park39Completed1 dayInternetCity 311
9/29/20257262 W CLARENCE AVENorwood Park41Completed7 daysInternetCity 311
9/23/20255451 N NEENAH AVENorwood Park41Completed7 daysInternetCity 311
8/11/20255651 N MOODY AVENorwood Park45Completed10 daysAlderman's OfficeCity 311
8/26/20255311 N HARLEM AVENorwood Park41Completed10 daysAlderman's OfficeCity 311
8/24/20266026 N AUSTIN AVENorwood Park39Completed15 daysInternetCity 311
4/23/20265365 N NORMANDY AVENorwood Park41Completed0 daysInternetCity 311
8/23/20257274 W EVERELL AVENorwood Park41Completed13 daysInternetCity 311
9/29/20257263 W OLIVE AVENorwood Park41Completed8 daysInternetCity 311
8/28/20255861 N NAGLE AVENorwood Park45Completed13 daysAlderman's OfficeCity 311
12/17/20255222 N OLEANDER AVENorwood Park41Completed1 dayPhone CallCity 311
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