RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4230 locations in the last 30 days (4386 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/19/20264702 N KELSO AVEAlbany Park39Completed3 daysInternetCity 311
8/27/20254543 N LOWELL AVEIrving Park39Completed14 daysAlderman's OfficeCity 311
4/23/20265827 N KILPATRICK AVEForest Glen39Completed1 dayPhone CallCity 311
8/23/20255839 N CENTRAL AVEJefferson Park39Completed13 daysMobile DeviceCity 311
12/4/20254139 N PULASKI RDIrving Park39Completed1 dayAlderman's OfficeCity 311
12/9/20256116 N MEADE AVENorwood Park39Completed1 dayInternetCity 311
4/23/20263201 W BERWYN AVENorth Park39Completed1 dayPhone CallCity 311
9/19/20254818 N KEDVALE AVEAlbany Park39Completed11 daysInternetCity 311
1/2/20266270 N CICERO AVEForest Glen39Completed3 daysPhone CallCity 311
8/4/20256230 N KEYSTONE AVEForest Glen39Completed11 daysAlderman's OfficeCity 311
1/3/20265113 N TRIPP AVEAlbany Park39Completed2 daysInternetCity 311
1/2/20264105 W CULLOM AVEIrving Park39Completed3 daysInternetCity 311
10/3/20254601 N LOWELL AVEIrving Park39Completed11 daysInternetCity 311
9/29/20254215 N ELSTON AVEIrving Park39Completed4 daysInternetCity 311
8/20/20254468 N ELSTON AVEIrving Park39Completed8 daysPhone CallCity 311
7/30/20253344 W BRYN MAWR AVENorth Park39Completed19 daysPhone CallCity 311
4/29/20266353 W HYACINTH STNorwood Park39Completed1 dayPhone CallCity 311
8/23/20255729 N LANSING AVEForest Glen39Completed13 daysPhone CallCity 311
7/13/20266157 N LEGETT AVEForest Glen39Completed2 daysPhone CallCity 311
7/10/20266306 N LENOX AVEForest Glen39Completed5 daysPhone CallCity 311
7/13/20266251 N LENOX AVEForest Glen39Completed2 daysPhone CallCity 311
7/11/20266023 N MASON AVEJefferson Park39Completed4 daysInternetCity 311
8/12/20254838 N AVERS AVEAlbany Park39Completed7 daysPhone CallCity 311
8/25/20254646 N KOSTNER AVEIrving Park39Completed3 daysAlderman's OfficeCity 311
10/1/20254445 W LELAND AVEIrving Park39Completed8 daysPhone CallCity 311
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