RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4416 locations in the last 30 days (4580 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.

32080fewer → more

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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/13/20262146 W HURON STWest Town36Completed1 dayInternetCity 311
11/6/20252146 W MAYPOLE AVENear West Side27Completed4 daysInternetCity 311
8/8/20252147 N KEYSTONE AVEHermosa35Completed12 daysPhone CallCity 311
8/18/20262147 N LAPORTE AVEBelmont Cragin26Completed10 daysMobile DeviceCity 311
9/4/20252147 N LAPORTE AVEBelmont Cragin26Completed12 daysInternetCity 311
11/20/20252147 N LAPORTE AVEBelmont Cragin26Completed1 dayPhone CallCity 311
8/29/20262147 N SHEFFIELD AVELincoln Park43Completed10 daysMobile DeviceCity 311
1/7/20262147 W HURON STWest Town36Completed2 daysInternetCity 311
6/10/20262148 E 99TH STSouth Deering7Completed1 dayPhone CallCity 311
8/20/20252148 N CLAREMONT AVELogan Square32Completed13 daysInternetCity 311
9/1/20262148 N HALSTED STLincoln Park43Completed10 daysInternetCity 311
4/24/20262148 N KOSTNER AVEHermosa26Completed3 daysInternetCity 311
9/1/20262148 N LATROBE AVEBelmont Cragin36Completed9 daysPhone CallCity 311
10/28/20252148 N LECLAIRE AVEBelmont Cragin26Completed6 daysInternetCity 311
11/4/20252148 N LECLAIRE AVEBelmont Cragin26Completed3 daysInternetCity 311
3/30/20262148 W EASTWOOD AVELincoln Square47Completed1 dayInternetCity 311
9/9/20252148 W EASTWOOD AVELincoln Square47Completed10 daysInternetCity 311
8/25/20262148 W EASTWOOD AVELincoln Square47Completed14 daysInternetCity 311
9/23/20252148 W WEBSTER AVELogan Square32Completed9 daysPhone CallCity 311
11/20/20252148 W WEBSTER AVELogan Square32Completed1 dayPhone CallCity 311
6/5/20262148 W WEBSTER AVELogan Square32Completed4 daysPhone CallCity 311
2/18/20262148 W WEBSTER AVELogan Square32Completed1 dayPhone CallCity 311
7/28/20252148 W WEBSTER AVELogan Square32Completed9 daysPhone CallCity 311
9/1/20262148 W WEBSTER AVELogan Square32Completed14 daysPhone CallCity 311
10/15/20262149 N BELL AVELogan Square32Open—Mobile DeviceCity 311
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