Gateway Atlas Philadelphia, written to the world

Philadelphia has eleven sister cities, from Florence in 1964 to Frankfurt in 2015. This atlas paints each bond, finds the Philadelphians and places that carry it here, and helps hosts welcome every delegate, including Disabled visitors.

Field notes checked November 1, 2026

Map of Philadelphia's sister cities Stitched routes run from Philadelphia to Douala, Tianjin, Incheon, and Kobe, and to seven European and Mediterranean cities shown in the detail map below. Each city name links to its journal page.
Detail map of Europe and the Mediterranean

Closer in: seven sister cities from Aix-en-Provence to Nizhny Novgorod.

Map: Natural Earth land outlines (public domain), painted with SVG. Select any city name to open its page.

The journal

One page per sister city: the story of the bond, who carries it in Philadelphia today, and what a host needs to know to welcome every visitor. Every fact links to its source.

For Youth Diplomats and Global Scholars

Every journal page ends with questions for students. Here is a project that works with any of them.

Paint a postcard

Choose a sister city. On one side, paint a place in Philadelphia that a student from that city should see. On the other, write why, in plain words, in under 60 words.

Find the thread

Each bond started for a reason: trade, history, a gift, a school exchange. Find the thread for your city, then find one Philadelphian who carries it today.

Plan the welcome

Use the host's checklist to plan a visit for a delegate who uses a wheelchair and one who is Deaf. What changes? What would you need to ask?

About this atlas

The World Affairs Council of Philadelphia administers the Sister Cities program for the City of Philadelphia and hosts international delegations year-round. Gateway Atlas is meant to sit alongside that work: a free, open reference that hosts, speakers, citizen diplomats, and students can use to prepare.

Population figures are for the Philadelphia-Camden-Wilmington metro area, from the U.S. Census Bureau's American Community Survey five-year estimates, as compiled by Stacker. Where facts conflict between sources, the page says so.

An independent project by Nico Meyering, a Disabled civic leader in Philadelphia who speaks with international delegations. It is not affiliated with or endorsed by the World Affairs Council of Philadelphia, the City of Philadelphia, or any government or consulate named here. Corrections are welcome: meyeringn@gmail.com.