RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4501 locations in the last 30 days (4654 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.

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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/7/20261213 W 110TH STMorgan Park21Completed7 daysPhone CallCity 311
6/4/20261213 W 110TH STMorgan Park21Completed4 daysPhone CallCity 311
12/4/20251213 W 110TH STMorgan Park21Completed1 dayPhone CallCity 311
5/13/20261213 W 33RD STBridgeport11Completed2 daysMobile DeviceCity 311
7/27/20251213 W GEORGE STLake View32Completed10 daysMobile DeviceCity 311
6/26/20261213 W RACE AVEWest Town27Completed5 daysMobile DeviceCity 311
10/15/20251213 W RACE AVEWest Town27Completed6 daysInternetCity 311
7/31/202612145 S WENTWORTH AVEWest Pullman9Completed3 daysInternetCity 311
8/10/202512148 S HARVARD AVEWest Pullman9Completed12 daysPhone CallCity 311
5/28/20261214 N CAMPBELL AVEWest Town26Completed6 daysMobile DeviceCity 311
8/27/20261214 N ROCKWELL STWest Town26Completed14 daysInternetCity 311
9/12/20251214 W 52ND STNew City20Completed11 daysPhone CallCity 311
9/6/20251214 W HUBBARD STWest Town27Completed11 daysMobile DeviceCity 311
8/10/20261214 W MELROSE STLake View44Completed10 daysMobile DeviceCity 311
6/12/20261214 W MELROSE STLake View44Completed4 daysPhone CallCity 311
7/18/20261214 W NELSON STLake View32Completed9 daysMobile DeviceCity 311
6/1/20261214 W NEWPORT AVELake View44Completed3 daysInternetCity 311
8/31/20261214 W NEWPORT AVELake View44Completed9 daysPhone CallCity 311
11/21/202512156 S EDBROOKE AVEWest Pullman9Completed3 daysPhone CallCity 311
5/12/20261215 N AUSTINAustin29Completed6 daysSalesforce Mobile AppCity 311
1/10/20261215 N LEAVITT STWest Town1Completed3 daysMobile DeviceCity 311
7/30/20261215 N MAPLEWOOD AVEWest Town26Completed13 daysMobile DeviceCity 311
10/1/20251215 N MASON AVEAustin29Completed1 dayPhone CallCity 311
9/16/20251215 N MASON AVEAustin29Completed9 daysAlderman's OfficeCity 311
12/8/20251215 S SAWYER AVENorth Lawndale24Completed1 dayInternetCity 311
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