From Latinos Progresando comes a list of May 1 Marches:

Albuquerque, NM: starts at 3pm in Tiguex Park.

Berkeley, CA: starts at 11:30 am at Sproul Plaza, ends at Berkeley City Hall.

Chicago, IL: starts at 12:00 pm at Lake and Ashland and ends at 1 pm.

Chico, CA: Starts at 3 pm at Chico City Hall.

Boston, MA: Starts at 1:30pm in East Boston and Everest, ending in Chelsea.

Davis, CA: Starts at 11 am at the UC Davis campus.

Denver, CO: Starts at 10 am at Lincoln Park.

Detroit, MI: Starts at 10 am at Patton Park and ends at Clark Park.

Hempstead, NY: Starts at 11:30 am at the corner of Front and Franklin Streets. Houston, TX: Starts at 2pm in front of the Mickey Leland Federal Building at 1919 Smith Street, and ends at Antioch Park at 1400 Smith Street.

Los Angeles, CA: Starts at noon at Olympic and Broadway Streets, ends near Los Angeles City Hall.

Louisville, KY: Starts at 5 pm at the Louisville Courthouse, ends at Jefferson Park.

Madison, WI: Starts at noon at the Wisconsin State Capitol.

New York, NY: Starts at 4 pm at Union Square, ends at Federal Plaza.

Oakland, CA: Starts at 9 am at Fruitvale Plaza, marches along International Boulevard.

Pheonix, AZ: Starts at 8:30 am at Veteran's Memorial Coloseum, ends at the Arizona State Capitol.

Pittsburgh, PA: Starts at 4 pm downtown, ends at Mellon Square Park.

Portland, OR: Starts at 4 pm at South Park Blocks, SW Park and Salmon Streets.

Sacramento, CA: Starts at 10 am at Hiram Johnson High School, ends at the California State Capitol. San Antonio, TX: Starts at noon at Plaza del Zacate.

San Diego, CA: Starts at 10 am at Chicano Park, ends at San Diego City Hall.

San Francisco, CA: Starts at noon at Dolores Park, ends at San Francisco Civic Center.

San Jose, CA: Starts at 4pm at the corner of King Road and Story Road (parking lot of Mi Pueblo Foods), and ends at San Jose City Hall

Santa Fe, NM: Starts at 4 pm downtown, ends at De Vargas Park.

Seattle, WA: Starts at 3 pm at the Seattle Center Fisher Pavillion.

St. Paul, MN: Starts at 2 pm at corner of Robert and Kellogg Streets, ends at Minnesota Capitol Building at 4 pm.

Tucson, AZ: Starts at 8 am at the South Gate Shopping Center.

Vancouver, British Columbia, Canada: Starts at 6 pm at Clark Park, ends at Grandview Park.