RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4555 locations in the last 30 days (4702 reports) · Last sighting 21 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/2/20264953 S HOYNE AVENew City15Completed1 dayPhone CallCity 311
7/14/20261653 W 45TH STNew City15Completed14 daysPhone CallCity 311
1/21/20265159 S ABERDEEN STNew City20Completed1 dayInternetCity 311
7/10/2026443 W 46TH PLNew City15Completed12 daysPhone CallCity 311
1/21/20265211 S MORGAN STNew City20Completed1 dayInternetCity 311
7/20/20265251 S MARSHFIELD AVENew City16Completed1 dayPhone CallCity 311
1/21/20265408 S LAFLIN STNew City16Completed1 dayPhone CallCity 311
6/28/20264522 S MARSHFIELD AVENew City15Completed2 daysPhone CallCity 311
2/7/20265150 S HONORE STNew City16Completed2 daysMobile DeviceCity 311
6/9/20265339 S RACINE AVENew City16Completed3 daysPhone CallCity 311
5/18/2026552 W 43RD PLNew City11Completed1 dayAlderman's OfficeCity 311
2/7/20264831 S ADA STNew City20Completed2 daysMobile DeviceCity 311
1/22/20264321 S HERMITAGE AVENew City15Completed1 dayPhone CallCity 311
6/26/20264810 S SEELEY AVENew City15Completed4 daysMobile DeviceCity 311
6/1/20264847 S WINCHESTER AVENew City15Completed1 dayMobile DeviceCity 311
9/29/2025615 W ROOT STNew City11Completed11 daysMobile DeviceCity 311
6/11/20264527 S LOWE AVENew City15Completed5 daysInternetCity 311
6/11/20264527 S LOWE AVENew City15Completed5 daysMobile DeviceCity 311
5/8/2026853 W 49TH PLNew City20Completed4 daysInternetCity 311
6/12/20264714 S WOOD STNew City15Completed3 daysAlderman's OfficeCity 311
6/2/20264445 S WALLACE STNew City15Completed1 dayMobile DeviceCity 311
6/13/20264350 S HERMITAGE AVENew City15Completed3 daysMobile DeviceCity 311
7/21/2026535 W 45TH STNew City15Completed7 daysInternetCity 311
6/1/20265329 S MARSHFIELD AVENew City16Completed2 daysPhone CallCity 311
5/18/20265251 S MARSHFIELD AVENew City16Completed1 dayPhone CallCity 311
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