RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4607 locations in the last 30 days (4760 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/23/20264247 S SACRAMENTO AVEBrighton Park12Completed7 daysMobile DeviceCity 311
7/26/20254546 S SACRAMENTO AVEBrighton Park12Completed10 daysMobile DeviceCity 311
10/2/20264001 S ARTESIAN AVEBrighton Park12Open—Mobile DeviceCity 311
8/6/20263553 S ROCKWELL STBrighton Park12Completed14 daysPhone CallCity 311
9/15/20263637 S ARTESIAN AVEMcKinley Park12Completed9 daysPhone CallCity 311
7/26/20252751 W PERSHING RDBrighton Park12Completed10 daysMobile DeviceCity 311
10/2/20264351 S SACRAMENTO AVEBrighton Park12Open—Mobile DeviceCity 311
10/2/20264403 S SACRAMENTO AVEBrighton Park12Open—Mobile DeviceCity 311
8/27/20264008 S BRIGHTON PLBrighton Park12Completed8 daysMobile DeviceCity 311
11/24/20252258 W 35TH STMcKinley Park12Completed2 daysAlderman's OfficeCity 311
11/7/20252629 W 36TH STBrighton Park12Completed5 daysPhone CallCity 311
11/11/20253529 S DAMEN AVEMcKinley Park12Completed1 dayInternetCity 311
11/25/20254351 S SACRAMENTO AVEBrighton Park12Completed1 dayMobile DeviceCity 311
7/6/20264230 S CAMPBELL AVEBrighton Park12Completed1 dayPhone CallCity 311
3/4/20264236 S MAPLEWOOD AVEBrighton Park12Completed2 daysMobile DeviceCity 311
11/17/20254300 S ST LOUIS AVEBrighton Park12Completed2 daysPhone CallCity 311
11/6/20252523 W 38TH STBrighton Park12Completed1 dayAlderman's OfficeCity 311
4/11/20262625 W 43RD STBrighton Park12Completed2 daysInternetCity 311
9/25/20254212 S CALIFORNIA AVEBrighton Park12Completed1 dayPhone CallCity 311
3/7/20263330 W 38TH STBrighton Park12Completed4 daysMobile DeviceCity 311
10/31/20254559 S WASHTENAW AVEBrighton Park12Completed3 daysPhone CallCity 311
2/27/20264037 S MAPLEWOOD AVEBrighton Park12Completed5 daysPhone CallCity 311
11/14/20253633 S WOOD STMcKinley Park12Completed3 daysMobile DeviceCity 311
10/29/20253416 S WESTERN AVEMcKinley Park12Completed2 daysMobile DeviceCity 311
3/3/20263500 W 47TH STBrighton Park12Completed1 dayPhone CallCity 311
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