The government has a few educational grant programs that they offer. While not specifically grants for women, you should apply for them anyway. Government grants, as well as some private aid that does offer grants for women, require that you fill out the Free Application for Federal Student Aid (FAFSA). This is because the grants are based on financial need and you must demonstrate that your income level qualifies. Once you have mailed that in, you can apply for the Federal Pell Grant. This is one of the government's main educational aid programs and should not be ignored by anyone. If you qualify and receive a Pell grant, you become eligible to apply for other government grants such as the Federal Supplemental Educational Opportunity Grant.
There are a number of foundations that provide grants for women pursuing higher education. The Business and Professional Women Foundation gives money to women pursing education to either get back into the workforce or advance in their career. The Educational Foundation for Women in Accounting awards scholarships to women seeing undergraduate and post graduate degrees. The Jeannette Rankin Women Scholarship Fund has grants for women in low income situations who are seeking advanced education. The Soroptimist Women's Opportunity Award proves grants for women who are the primary financial providers for their family money for education.
Lastly, there are a number of public and private organizations that offer grants for women who are pursuing programs in fields and industries where women are underrepresented. Most likely this is to encourage more women to pursue careers in those areas. The Barry Goldwater Scholarship Grant is for sophomores and juniors working on science or mathematic majors. The National Science Foundation offers graduate fellowships to women pursuing programs in math, science, and engineering or computer science. There are lots of grants for women pursuing higher education. Just open up a web browser and start searching.