We expected that Cemetery Maps would be available at nearby newspaper stands. They are not. There are several large signs within the cemetery, but no maps are distributed (except at the Montmartre cemetery)
Occasionally a card-table is set-up outside of Pere LaChaise on the way to the Pere LaChaise Metro Station, the maps are great, but some days they are not set-up.
The City of Paris website, has over 30 assorted cemetery maps

Cimetières (Maps)
City of Paris (Ville de Paris) Paris.fr
(contains over 30 cemetery maps)

Visiting Paris Cemeteries
Paris Convention and Visitors Bureau

Paris Cemeteries
GypsyMan Media

Stever Soper