RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4603 locations in the last 30 days (4756 reports) · Last sighting 2 days 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/20/20254420 S ROCKWELL STBrighton Park12Completed4 daysPhone CallCity 311
4/9/20263515 S ROCKWELL STBrighton Park12Completed1 dayMobile DeviceCity 311
4/6/20264424 S MAPLEWOOD AVEBrighton Park12Completed2 daysPhone CallCity 311
10/28/20253424 W PERSHING RDBrighton Park12Completed3 daysInternetCity 311
10/22/20254250 S ARTESIAN AVEBrighton Park12Completed6 daysInternetCity 311
9/12/20253233 S LEAVITT STMcKinley Park12Completed10 daysMobile DeviceCity 311
3/27/20264035 S MAPLEWOOD AVEBrighton Park12Completed3 daysInternetCity 311
9/11/20253301 W 38TH PLBrighton Park12Completed11 daysspot-open311-CHITEXTCity 311
9/11/20254420 S FAIRFIELD AVEBrighton Park12Completed11 daysPhone CallCity 311
10/22/20253029 W 38TH PLBrighton Park12Completed6 daysMobile DeviceCity 311
10/23/20254221 S RICHMOND STBrighton Park12Completed5 daysMobile DeviceCity 311
11/1/20254019 S CAMPBELL AVEBrighton Park12Completed2 daysInternetCity 311
10/20/20254240 S RICHMOND STBrighton Park12Completed7 daysInternetCity 311
11/17/20253609 S WASHTENAW AVEBrighton Park12Completed2 daysAlderman's OfficeCity 311
4/13/20264217 S ARTESIAN AVEBrighton Park12Completed1 dayPhone CallCity 311
11/14/20254200 S MOZART STBrighton Park12Completed3 daysPhone CallCity 311
9/15/20254141 S ARTESIAN AVEBrighton Park12Completed11 daysAlderman's OfficeCity 311
8/18/20263991 S ARCHER AVEBrighton Park12Completed16 daysMobile DeviceCity 311
3/12/20264414 S ROCKWELL STBrighton Park12Completed4 daysPhone CallCity 311
8/26/20264215 S CAMPBELL AVEBrighton Park12Completed9 daysPhone CallCity 311
3/9/20263622 S CALIFORNIA AVEBrighton Park12Completed2 daysPhone CallCity 311
3/3/20262509 W POPE JOHN PAUL II DRBrighton Park12Completed1 dayInternetCity 311
10/20/20254540 S MOZART STBrighton Park12Completed7 daysPhone CallCity 311
9/15/20254219 S CAMPBELL AVEBrighton Park12Completed7 daysPhone CallCity 311
3/13/20262514 W 39TH PLBrighton Park12Completed3 daysPhone CallCity 311
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