From the Institute of Museum and Library services website:

The Institute of Museum and Library Services has launched a new special initiative, Accelerating Promising Practices for Small Libraries (APP), and is accepting grant applications now through February 25, 2019. This new funding opportunity is designed specifically to strengthen the ability of small and rural libraries, archives, and related organizations to serve their communities, and awards sizes range from $10,000 to $50,000.

From the National Institute of Health website:

The NNLM Reading Club is a selection of “ready-to-use” fiction and nonfiction book titles along with free and downloadable materials designed to help libraries support health literacy and their communities’ health information needs by celebrating important National Health Observances through the fun and intimacy of a book club.

From the Office of the Secretary of State:

Pursuant to authority granted by Sections 345 of Public Act 100-0586, the Office of the
Secretary of State (SOS) shall award the sum of $1,500,000, or so much thereof as may be
necessary to community providers statewide to encourage census participation.
Based on this authority, the SOS is requesting proposals from responsible parties to address these
needs. If interested and able to meet the requirements set forth in this RFGP, the SOS
appreciates and welcomes all responses.

From the ALA website:

The Social Responsibilities Round Table of the American Library Association (SRRT) is pleased to announce the first annual Herb Biblo Conference Travel Grants to help finance up to two SRRT members' attendance at the ALA Annual Conference. The $1000 award covers limited fees related to airfare, lodging, and conference registration.

For additional information, and to apply for the grant, please click here.

From the ALA website:

From the NIH website:

The purpose of the Health Sciences Library Project Award is to support health sciences librarians as conduits of information management, access, and delivery within their institution and/or outreach community. Hospital libraries, community college libraries, libraries supporting 2- and 4-year degrees in the health sciences and libraries at medical schools are encourage to apply.

For additional information, please click here.

Costco's giving is focused on Children, Education and Health and Human Services. Their grants are generally program or event based. Applicants must be IRS 501(c)(3) non profit organizations in the markets where they do business. Most friends or library foundations with 501c3 status would qualify, but not individual schools or government-run libraries.

From the Big Lots! Foundation website:

Big Lots Foundation funds support programs that will enhance the lives of children and families in the areas of hunger, housing, healthcare, and education. Priority will be given to programs serving women and children. Applicants must have a 501(c)3 public nonprofit status and be located in the United States near Big Lots stores or distribution centers. For more information and the online application, visit: https://www.biglots.com/corporate/community/support.

As part of its ongoing commitment to rural communities across the country, FRS offers aid to communities served by NTCA members through its annual Community Grant Program. These grants are designed to provide support to a variety of local efforts to build and sustain a high quality of life in rural America.

From the Wish You Well website:

Supporting adult and family literacy in the United States by fostering and promoting the development and expansion of new and existing literacy and educational programs.

For additional information, and to apply for funding, please click here.