RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4696 reports) · Last sighting 17 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/20/2026909 W 76TH STAuburn Gresham17Completed2 daysInternetCity 311
5/17/2026909 N HONORE STWest Town36Completed3 daysInternetCity 311
6/16/2026909 N HONORE STWest Town36Completed6 daysAlderman's OfficeCity 311
6/11/2026909 N HARDING AVEHumboldt Park37Completed4 daysAlderman's OfficeCity 311
8/12/2025909 N FRANCISCO AVEWest Town26Completed12 daysInternetCity 311
8/3/2025909 E 52ND STHyde Park20Completed8 daysInternetCity 311
8/23/2025909 E 52ND STHyde Park20Completed5 daysInternetCity 311
9/15/2025909 E 52ND STHyde Park20Completed8 daysInternetCity 311
10/31/2025909 E 52ND STHyde Park20Completed3 daysInternetCity 311
6/21/2026908 W 18TH PLLower West Side25Completed3 daysMobile DeviceCity 311
9/17/2025908 N TRUMBULL AVEHumboldt Park27Completed12 daysInternetCity 311
10/24/2025908 N RICHMOND STWest Town26Completed3 daysPhone CallCity 311
10/5/2025908 N RICHMOND STWest Town26Completed1 dayInternetCity 311
4/29/2026908 N MONTICELLO AVEHumboldt Park27Completed2 daysPhone CallCity 311
5/4/2026908 N FRANCISCO AVEWest Town26Completed3 days—City 311
1/12/2026908 N ASHLAND AVEWest Town1Completed1 dayInternetCity 311
4/19/2026907 W FLETCHER STLake View44Completed1 dayInternetCity 311
9/20/2025907 W ARGYLE STUptown48Completed6 daysInternetCity 311
2/17/2026907 W ADDISON STLake View44Completed1 dayInternetCity 311
3/28/2026907 W ADDISON STLake View44Completed3 daysInternetCity 311
3/10/2026907 W ADDISON STLake View44Completed2 daysInternetCity 311
10/4/2025907 N LATROBE AVEAustin37Completed11 daysMobile DeviceCity 311
5/17/2026907 N HONORE STWest Town36Completed3 daysInternetCity 311
7/27/2025907 N HERMITAGE AVEWest Town1Completed5 daysMobile DeviceCity 311
5/27/2026907 N HERMITAGE AVEWest Town1Completed2 daysMobile DeviceCity 311
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