If there is power in numbers, then black college-educated women nationwide are a force to be reckoned with.

And with two predominantly black sororities having functions in the Lowcountry this month and in April, they are sure to make a difference.

Delta Sigma Theta Sorority Inc., with 250,000 members worldwide, celebrated its 100th anniversary in January.

Now, its four local chapters — upwards of 500 members — will continue their Lowcountry celebration the weekend of March 22.

Planned are a centennial ball, a walk to provide safe water globally and a re-enactment of the Women’s Suffrage March in Columbia.

Alpha Kappa Alpha Sorority Inc., which celebrated its centennial in 2008, has a membership of 260,000.

It is holding its South Atlantic Regional Conference April 17-21 at the Charleston Area Convention Center.

More than 3,500 members from Florida, Georgia, and South Carolina are expected; that’s an economic impact of more than $4 million to the local community, sorority officials say.

Girl power. And a nice chunk of change for Charleston.

Wanda J. Brown, president of the North Charleston Delta chapter, said the AKA sorority’s events celebrate the centennial but also help raise money for scholarships for local students and non-profits such as Water Missions International.

Her chapter soon will post information for its $4,000-$4,500 Gloria H.G. Williams scholarship, named for its charter member.

For more information about the scholarships and the public events, visit www.nchasalumnaedst.org.

AKA’s conference will address an array of economic, health, social justice and human rights issues. Attendees also will participate in a school supply collection to benefit local children whose parents are incarcerated.

A youth summit is planned to emphasize the importance of developing young people for leadership roles.

A public meeting will recognize military members and others who have made significant community contributions.

Visit www.akasouthatlanticregion.org for more information.

Most sorority members are known to be dedicated to their organizations and work tirelessly in their communities. Think Yvonne Orr, retired principal of Charleston Catholic School, a Delta, and Vanessa Turner-Maybank, Charleston’s director of tourism and clerk of council, AKA.

Most sororities offer mentorship programs and scholarships.

Along with Zeta Phi Beta (125,000 members) and Sigma Gamma Rho (85,000), these black sororities are making a huge difference.

Now, imagine the monumental benefits if more than three quarters of a million black women all joined together on one major project a year?

What do you think, ladies?

Reach Assistant Features Editor Shirley A. Greene at 937-5555, or sgreene@post andcourier.com.