RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4589 locations in the last 30 days (4746 reports) · Last sighting 22 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/3/20265510 N AUSTIN AVEJefferson Park45Completed2 daysMobile DeviceCity 311
9/25/20265363 N LYNCH AVEJefferson Park45Open—Alderman's OfficeCity 311
5/3/20266347 W TOUHY AVEForest Glen45Completed2 daysInternetCity 311
4/2/20265113 W CARMEN AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
4/2/20265512 N CENTRAL AVEJefferson Park45Completed1 dayPhone CallCity 311
4/2/20265723 N MENARD AVEJefferson Park45Completed1 dayInternetCity 311
5/4/20264722 N LAPORTE AVEPortage Park45Completed1 dayMobile DeviceCity 311
9/29/20256252 N NAGLE AVENorwood Park45Completed8 daysPhone CallCity 311
6/2/20266256 N NAPER AVENorwood Park45Completed1 dayInternetCity 311
5/3/20265316 N LINDER AVEJefferson Park45Completed2 daysMobile DeviceCity 311
4/2/20265445 W GALE STJefferson Park45Completed1 dayPhone CallCity 311
5/13/20265111 W MONTROSE AVEPortage Park45Completed2 daysInternetCity 311
8/4/20256143 W PETERSON AVENorwood Park45Completed11 daysPhone CallCity 311
10/4/20255508 W FARRAGUT AVEJefferson Park45Completed12 daysPhone CallCity 311
4/1/20265321 W WINNEMAC AVEJefferson Park45Completed2 daysInternetCity 311
8/6/20254879 N MASON AVEJefferson Park45Completed12 daysInternetCity 311
9/17/20255522 W LAWRENCE AVEJefferson Park45Completed9 daysAlderman's OfficeCity 311
5/13/20264340 N MILWAUKEE AVEPortage Park45Completed2 daysInternetCity 311
4/1/20264919 W ARGYLE STForest Glen45Completed2 daysInternetCity 311
9/9/20265448 W HIGGINS AVEJefferson Park45Completed14 daysMobile DeviceCity 311
9/11/20265421 W WINDSORPortage Park45Completed6 daysSalesforce Mobile AppCity 311
2/20/20264929 W ARGYLE STForest Glen45Completed3 daysMobile DeviceCity 311
9/6/20255614 N MULLIGAN AVENorwood Park45Completed11 daysInternetCity 311
9/22/20264858 N MILWAUKEE AVEJefferson Park45Open—InternetCity 311
5/1/20265452 N LUNA AVEJefferson Park45Completed3 daysPhone CallCity 311
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