During the 19th and 20th centuries, 37 new states were added to the original 13 as the nation expanded across the North American continent and acquired a number of overseas possessions.
United States Government International organization participation ADB (nonregional members), AfDB (nonregional members), ANZUS, APEC, Arctic Council, ARF, ASEAN (dialogue partner), Australia Group, BIS, BSEC (observer), CBSS (observer), CE (observer), CERN (observer), CP, EAPC, EBRD, FAO, G-5, G-7, G-8, G-10, IADB, IAEA, IBRD, ICAO, ICC, ICCt (signatory), ICRM, IDA, IEA, IFAD, IFC, IFRCS, IHO, ILO, IMF, IMO, IMSO, Interpol, IOC, IOM, ISO, ITSO, ITU, ITUC, MIGA, MINUSTAH, NAFTA, NATO, NEA, NSG, OAS, OECD, OPCW, OSCE, Paris Club, PCA, PIF (partner), SAARC (observer), SECI (observer), SPC, UN, UN Security Council, UNAMID, UNCTAD, UNESCO, UNHCR, UNITAR, UNMEE, UNMIL, UNOMIG, UNRWA, UNTSO, UPU, WCL, WCO, WHO, WIPO, WMO, WTO, ZC .
Washington DC Latitude Facts: 38.8964 and Washington DC Longitude Facts: -77.0262
United States People Birth rate (births/1,000 population) 14.18 births/1,000 population (2008 estimate)
United States People Infant mortality rate (deaths/1,000 live births) total: 6.3 deaths/1,000 live births; male: 6.95 deaths/1,000 live births; female: 5.62 deaths/1,000 live births (2008 estimate)
United States Economy Budget revenues: $2.568 trillion; expenditures: $2.73 trillion (2007 estimate)