RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4670 locations in the last 30 days (4818 reports) · Last sighting 11 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/13/20261746 N LOCKWOOD AVEAustin37Completed0 daysInternetCity 311
2/13/20261746 N LOCKWOOD AVEAustin37Completed0 daysPhone CallCity 311
7/24/20261746 N SAWYER AVEHumboldt Park26Completed11 daysPhone CallCity 311
1/3/20261746 N WILMOT AVEWest Town32Completed2 daysInternetCity 311
8/14/20251746 W 21ST STLower West Side25Completed12 daysAlderman's OfficeCity 311
10/9/20251746 W 71ST STWest Englewood17Completed11 daysInternetCity 311
9/3/20251746 W CHICAGO AVEWest Town1Completed13 daysPhone CallCity 311
10/23/20251746 W CORNELIA AVELake View47Completed6 daysPhone CallCity 311
5/10/20261746 W CORNELIA AVELake View47Completed3 daysMobile DeviceCity 311
8/30/20261746 W CORNELIA AVELake View47Completed18 daysMobile DeviceCity 311
8/23/20251746 W CORNELIA AVELake View47Completed12 daysInternetCity 311
9/29/20251746 W DIVISION STWest Town1Completed10 daysInternetCity 311
8/14/20251747 N KEDZIE AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
11/4/20251747 N LOCKWOOD AVEAustin37Completed3 daysAlderman's OfficeCity 311
6/8/20261747 N PULASKI RDHumboldt Park26Completed3 daysInternetCity 311
9/6/20251747 N SPAULDING AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
5/14/20261747 W 16TH STLower West Side25Completed5 daysInternetCity 311
11/17/20251747 W 38TH STMcKinley Park12Completed2 daysInternetCity 311
9/2/20251747 W 38TH STMcKinley Park12Completed9 daysInternetCity 311
3/15/20261747 W ELLEN STWest Town1Completed3 daysMobile DeviceCity 311
1/9/20261748 E 72ND PLSouth Shore7Completed3 daysPhone CallCity 311
5/19/20261748 N DRAKE AVEHumboldt Park26Completed3 daysAlderman's OfficeCity 311
9/29/20261748 N KEATING AVEAustin37Completed9 daysMobile DeviceCity 311
5/15/20261748 N LOREL AVEAustin37Completed3 daysPhone CallCity 311
11/20/20251748 N LOREL AVEAustin37Completed1 dayPhone CallCity 311
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