RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4465 locations in the last 30 days (4625 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/27/20268361 S BOND AVESouth Chicago10Completed7 daysPhone CallCity 311
7/15/2026835 W LAWRENCE AVEUptown46Completed8 daysPhone CallCity 311
3/28/2026835 W DAKIN STLake View46Completed2 daysInternetCity 311
2/27/2026835 W DAKIN STLake View46Completed4 daysInternetCity 311
9/29/2025835 W DAKIN STLake View46Completed8 daysMobile DeviceCity 311
7/17/2026835 W DAKIN STLake View46Completed10 daysInternetCity 311
5/29/2026835 W DAKIN STLake View46Completed4 daysInternetCity 311
12/12/2025835 W BELDEN AVELincoln Park43Completed0 daysMobile DeviceCity 311
4/23/2026835 W BARRY AVELake View44Completed5 daysInternetCity 311
6/12/2026835 S OAKLEY BLVDNear West Side28Completed3 daysPhone CallCity 311
5/27/2026835 S OAKLEY BLVDNear West Side28Completed7 daysPhone CallCity 311
7/24/2025835 S LAFLIN STNear West Side28Completed11 daysAlderman's OfficeCity 311
7/22/2026835 S CLAREMONT AVENear West Side28Completed12 daysMobile DeviceCity 311
3/27/2026835 N WOOD STWest Town1Completed3 daysInternetCity 311
8/23/2026835 N LOCKWOOD AVEAustin37Completed10 daysPhone CallCity 311
9/30/2025835 E 88TH STChatham8Completed9 daysMobile DeviceCity 311
7/17/20268359 S PAULINA STAuburn Gresham18Completed11 daysPhone CallCity 311
2/9/20268357 S KENWOOD AVEAvalon Park8Completed1 dayPhone CallCity 311
10/23/20258357 S CONSTANCE AVEAvalon Park8Completed4 daysInternetCity 311
12/27/20258357 S CONSTANCE AVEAvalon Park8Completed2 daysInternetCity 311
12/20/20258357 S CONSTANCE AVEAvalon Park8Completed2 daysInternetCity 311
1/2/20268357 S CONSTANCE AVEAvalon Park8Completed3 daysInternetCity 311
12/22/20258357 S CONSTANCE AVEAvalon Park8Completed2 daysInternetCity 311
12/18/20258357 S CONSTANCE AVEAvalon Park8Completed1 dayInternetCity 311
10/15/20258357 S CONSTANCE AVEAvalon Park8Completed6 daysInternetCity 311
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