RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/16/20253223 S MAY STBridgeport11Completed8 daysPhone CallCity 311
9/30/20253145 S PARNELL AVEBridgeport11Completed10 daysAlderman's OfficeCity 311
9/30/20253144 S PARNELL AVEBridgeport11Completed10 daysAlderman's OfficeCity 311
2/6/20263144 S WALLACE STBridgeport11Completed3 daysPhone CallCity 311
9/29/20252949 S LOOMIS STBridgeport11Completed11 daysAlderman's OfficeCity 311
7/30/2026639 W 43RD PLNew City11Completed11 daysMobile DeviceCity 311
9/25/20261117 W 31ST STBridgeport11Open—InternetCity 311
2/6/20263251 S GREEN STBridgeport11Completed3 daysAlderman's OfficeCity 311
2/6/2026924 W 31ST PLBridgeport11Completed3 daysInternetCity 311
9/29/20253128 S NORMAL AVEBridgeport11Completed11 daysInternetCity 311
7/30/20264220 S WALLACE STNew City11Completed11 daysAlderman's OfficeCity 311
2/7/20263113 S RACINE AVEBridgeport11Completed2 daysMobile DeviceCity 311
8/6/20253437 S HALSTED STBridgeport11Completed5 daysInternetCity 311
8/6/2025225 W 25TH PLArmour Square11Completed5 daysMobile DeviceCity 311
9/30/20252640 S PRINCETON AVEArmour Square11Completed10 daysPhone CallCity 311
9/30/2025224 W 31ST STArmour Square11Completed10 daysPhone CallCity 311
8/5/20253148 S LOWE AVEBridgeport11Completed6 daysMobile DeviceCity 311
9/25/2026823 W 34TH STBridgeport11Open—Phone CallCity 311
9/25/2026432 W 42ND PLNew City11Open—InternetCity 311
9/8/20252952 S BONAPARTE STBridgeport11Completed10 daysInternetCity 311
9/13/2026515 W 36TH STBridgeport11Completed15 daysInternetCity 311
8/5/20253200 S LOWE AVEBridgeport11Completed6 daysMobile DeviceCity 311
9/8/20253222 S RACINE AVEBridgeport11Completed10 daysAlderman's OfficeCity 311
9/14/20261008 W 31ST STBridgeport11Completed14 daysMobile DeviceCity 311
8/20/20261046 W 31ST PLBridgeport11Completed13 daysAlderman's OfficeCity 311
Page 285 of 2,176
PreviousNext