RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4572 locations in the last 30 days (4738 reports) · Last sighting 11 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.

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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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/15/20252196 N ELSTON AVELogan Square32Completed11 daysInternetCity 311
9/6/2026219 E 45TH STGrand Boulevard3Completed2 daysInternetCity 311
5/31/2026219 E 45TH STGrand Boulevard3Completed2 daysInternetCity 311
11/24/2025219 N GREEN STNear West Side27Completed0 daysInternetCity 311
6/27/2026219 N KOSTNER AVEWest Garfield Park28Completed2 daysPhone CallCity 311
6/30/2026219 S CENTRAL PARK BLVDEast Garfield Park28Completed9 daysPhone CallCity 311
10/13/2026219 S LOTUS AVEAustin29Open—Mobile DeviceCity 311
6/3/2026219 W 23RD PLArmour Square11Completed1 dayAlderman's OfficeCity 311
4/29/2026219 W 23RD PLArmour Square11Completed1 dayPhone CallCity 311
9/2/2026219 W 23RD PLArmour Square11Completed14 daysAlderman's OfficeCity 311
10/9/2026219 W 23RD PLArmour Square11Open—Alderman's OfficeCity 311
8/12/2026219 W 23RD PLArmour Square11Completed13 daysAlderman's OfficeCity 311
7/9/2026219 W 23RD PLArmour Square11Completed6 daysAlderman's OfficeCity 311
8/28/202521 E 103RD PLRoseland9Completed13 daysMobile DeviceCity 311
3/8/202621 E 73RD STGreater Grand Crossing6Completed1 dayInternetCity 311
5/29/202621 E ADAMS STLoop34Completed3 daysMobile DeviceCity 311
12/31/202521 E DIVISION STNear North Side2Completed5 daysInternetCity 311
8/23/202621 E ELM STNear North Side2Completed22 daysMobile DeviceCity 311
3/7/202621 N KILPATRICK AVEAustin28Completed3 daysInternetCity 311
6/21/202621 N MASON AVEAustin29Completed4 daysInternetCity 311
5/19/202621 N MENARD AVEAustin29Completed7 daysAlderman's OfficeCity 311
10/7/202621 N MENARD AVEAustin29Completed12 daysAlderman's OfficeCity 311
8/14/202521 N MENARD AVEAustin29Completed11 daysAlderman's OfficeCity 311
10/10/202521 W 59TH STWashington Park20Completed5 daysPhone CallCity 311
10/22/202521 W CHESTNUT STNear North Side42Completed0 daysPhone CallCity 311
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