RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4597 locations in the last 30 days (4745 reports) · Last sighting 12 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/29/20257262 W CLARENCE AVENorwood Park41Completed7 daysInternetCity 311
8/15/20255804 N MERRIMAC AVENorwood Park45Completed10 daysMobile DeviceCity 311
10/2/20255023 N BUSSE AVENorwood Park41Completed7 daysPhone CallCity 311
8/14/20256400 N NEWCASTLE AVENorwood Park41Completed11 daysMobile DeviceCity 311
7/7/20267534 W PALATINE AVENorwood Park41Completed7 daysPhone CallCity 311
7/9/20265346 N MONT CLARE AVENorwood Park41Completed8 daysInternetCity 311
9/29/20257263 W OLIVE AVENorwood Park41Completed8 daysInternetCity 311
5/1/20265400 N MONT CLARE AVENorwood Park41Completed4 daysInternetCity 311
10/1/20257119 W ARTHUR AVENorwood Park41Completed6 daysInternetCity 311
4/20/20265020 N NOTTINGHAM AVENorwood Park41Completed1 dayPhone CallCity 311
4/20/20265365 N NORMANDY AVENorwood Park41Completed1 dayInternetCity 311
8/15/20255845 N MEDINA AVENorwood Park45Completed10 daysMobile DeviceCity 311
10/2/20255230 N OAK PARK AVENorwood Park41Completed7 daysAlderman's OfficeCity 311
4/26/20265827 N MEDINA AVENorwood Park45Completed3 daysMobile DeviceCity 311
8/24/20266026 N AUSTIN AVENorwood Park39Completed15 daysInternetCity 311
12/6/20257618 W TALCOTT AVENorwood Park41Completed2 daysPhone CallCity 311
1/6/20267041 W FARRAGUT AVENorwood Park41Completed1 dayMobile DeviceCity 311
9/30/20256333 N OAK PARK AVENorwood Park41Completed7 daysInternetCity 311
10/14/20257741 W VICTORIA STNorwood Park41Completed1 dayPhone CallCity 311
10/1/20256477 N NEWARK AVENorwood Park41Completed6 daysMobile DeviceCity 311
9/22/20255658 N MCVICKER AVENorwood Park45Completed8 daysAlderman's OfficeCity 311
9/29/20255821 N NAGLE AVENorwood Park45Completed10 daysAlderman's OfficeCity 311
9/2/20255648 N MCVICKER AVENorwood Park45Completed1 dayPhone CallCity 311
8/29/20255501 N ODELL AVENorwood Park41Completed13 daysMobile DeviceCity 311
9/27/20255811 N NAVARRE AVENorwood Park41Completed10 daysPhone CallCity 311
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