RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4485 locations in the last 30 days (4652 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.

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/14/202611031 S GREEN STMorgan Park21Completed9 daysPhone CallCity 311
4/9/20261150 W 110TH PLMorgan Park21Completed0 daysPhone CallCity 311
10/14/20252529 W 110TH STMorgan Park19Completed7 daysMobile DeviceCity 311
8/15/202511711 S CHURCH STMorgan Park19Completed12 daysInternetCity 311
10/2/20251449 W 110TH STMorgan Park21Completed6 daysAlderman's OfficeCity 311
4/9/20262348 W 111TH STMorgan Park19Completed0 daysInternetCity 311
9/29/202511413 S WASHTENAW AVEMorgan Park19Completed8 daysPhone CallCity 311
8/14/20252536 W 109TH PLMorgan Park19Completed14 daysAlderman's OfficeCity 311
5/20/20262543 W 109TH STMorgan Park19Completed6 daysAlderman's OfficeCity 311
8/1/20252533 W 110TH PLMorgan Park19Completed12 daysInternetCity 311
8/11/20251973 W 111TH STMorgan Park19Completed11 daysAlderman's OfficeCity 311
9/23/202511042 S ARTESIAN AVEMorgan Park19Completed9 daysPhone CallCity 311
9/22/20252531 W 109TH STMorgan Park19Completed10 daysInternetCity 311
8/12/202511153 S GREEN STMorgan Park21Completed10 daysPhone CallCity 311
1/13/202611413 S WASHTENAW AVEMorgan Park19Completed1 dayPhone CallCity 311
9/11/202611601 S ARTESIAN AVEMorgan Park19Completed3 daysPhone CallCity 311
9/4/20251215 W 107TH PLMorgan Park21Completed8 daysPhone CallCity 311
8/24/202511269 S LOOMIS STMorgan Park21Completed9 daysInternetCity 311
6/26/202611801 S BELL AVEMorgan Park19Completed4 daysPhone CallCity 311
7/9/202610947 S HOMEWOOD AVEMorgan Park19Completed1 dayPhone CallCity 311
8/16/20261524 W 110TH STMorgan Park21Completed4 daysMobile DeviceCity 311
8/31/202611840 S OAKLEY AVEMorgan Park19Completed14 daysAlderman's OfficeCity 311
12/2/20251450 W 112TH PLMorgan Park21Completed1 dayInternetCity 311
9/6/20252259 W 107TH STMorgan Park19Completed9 daysMobile DeviceCity 311
10/14/202511261 S RACINE AVEMorgan Park21Completed8 daysMobile DeviceCity 311
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