RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4393 locations in the last 30 days (4548 reports) · Last sighting 22 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/8/20265500 W CORTLAND STAustin37Completed14 daysAlderman's OfficeCity 311
9/1/20256005 S MCVICKER AVEClearing13Completed14 daysMobile DeviceCity 311
8/11/20253600 W DIVERSEYAvondale35Completed14 daysSalesforce Mobile AppCity 311
9/3/20264825 W HUBBARD STAustin37Completed14 daysAlderman's OfficeCity 311
9/10/20263612 N SACRAMENTO AVEIrving Park35Completed14 daysPhone CallCity 311
8/7/20264420 N MARMORA AVEPortage Park38Completed14 daysPhone CallCity 311
7/31/2026601 W 46TH PLNew City15Completed14 daysAlderman's OfficeCity 311
8/7/20265705 W PATTERSON AVEPortage Park38Completed14 daysMobile DeviceCity 311
8/7/20265700 W PATTERSON AVEPortage Park38Completed14 daysMobile DeviceCity 311
8/7/20265701 W PATTERSON AVEPortage Park38Completed14 daysMobile DeviceCity 311
9/1/20263647 S UNION AVEBridgeport11Completed14 daysInternetCity 311
8/6/20264948 N WINCHESTER AVELincoln Square47Completed14 daysInternetCity 311
8/5/202550 N LONG AVEAustin37Completed14 daysPhone CallCity 311
9/11/20264509 N KENNETH AVEIrving Park39Completed14 daysMobile DeviceCity 311
8/6/20252332 W BELMONT AVENorth Center32Completed14 daysInternetCity 311
9/4/20264331 S ARTESIAN AVEBrighton Park15Completed14 daysInternetCity 311
8/28/20259430 S BISHOP STWashington Heights21Completed14 daysPhone CallCity 311
8/7/20252216 W PALMER STLogan Square32Completed14 daysPhone CallCity 311
9/8/20265401 S KARLOV AVEWest Elsdon23Completed14 daysPhone CallCity 311
9/4/20262250 W 72ND STChicago Lawn18Completed14 daysPhone CallCity 311
8/6/20264026 W NELSON STAvondale31Completed14 daysInternetCity 311
9/11/20262953 N MULLIGAN AVEBelmont Cragin30Completed14 daysPhone CallCity 311
8/26/20263345 W DIVISION STHumboldt Park26Completed14 daysPhone CallCity 311
8/27/20262212 N LEAVITT STLogan Square32Completed14 daysInternetCity 311
8/12/20264728 N LINCOLN AVELincoln Square47Completed14 daysInternetCity 311
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