year	first class postage rate, cents (current)	first class postage rate, cents (2026 $)	CPI
1866	3	65.2	15.4
1867	3	70.0	14.3
1868	3	72.8	13.8
1869	3	76.0	13.2
1870	3	79.3	12.6
1871	3	84.8	11.8
1872	3	84.8	11.8
1873	3	86.5	11.6
1874	3	90.9	11.0
1875	3	94.3	10.6
1876	3	96.6	10.4
1877	3	98.9	10.1
1878	3	103.8	9.7
1879	3	103.8	9.7
1880	3	101.3	9.9
1881	3	101.3	9.9
1882	3	101.3	9.9
1883	2	68.9	9.7
1884	2	70.3	9.5
1885	2	71.8	9.3
1886	2	73.4	9.1
1887	2	72.6	9.2
1888	2	72.6	9.2
1889	2	75.0	8.9
1890	2	75.8	8.8
1891	2	75.8	8.8
1892	2	75.8	8.8
1893	2	76.7	8.7
1894	2	80.2	8.3
1895	2	82.2	8.1
1896	2	82.2	8.1
1897	2	83.2	8.0
1898	2	83.2	8.0
1899	2	83.2	8.0
1900	2	82.2	8.1
1901	2	81.2	8.2
1902	2	80.2	8.3
1903	2	78.4	8.5
1904	2	77.5	8.6
1905	2	78.4	8.5
1906	2	76.7	8.7
1907	2	73.4	9.1
1908	2	75.0	8.9
1909	2	75.8	8.8
1910	2	72.6	9.2
1911	2	72.6	9.2
1912	2	69.7	9.6
1913	2	67.5	9.9
1914	2	66.8	10.0
1915	2	66.1	10.1
1916	2	61.8	10.9
1917	2	52.2	12.8
1918	3	66.3	15.0
1919	2	38.4	17.3
1920	2	32.1	20.0
1921	2	37.7	17.9
1922	2	39.8	16.8
1923	2	38.8	17.1
1924	2	39.1	17.1
1925	2	37.7	17.5
1926	2	38.2	17.7
1927	2	38.6	17.4
1928	2	39.1	17.2
1929	2	38.6	17.2
1930	2	40.2	16.7
1931	2	44.2	15.2
1932	3	73.7	13.6
1933	3	76.5	12.9
1934	3	74.8	13.4
1935	3	73.1	13.7
1936	3	72.1	13.9
1937	3	69.1	14.4
1938	3	71.1	14.1
1939	3	72.6	13.9
1940	3	71.6	14.0
1941	3	68.2	14.7
1942	3	61.1	16.3
1943	3	57.6	17.3
1944	3	56.6	17.6
1945	3	55.4	18.0
1946	3	50.6	19.5
1947	3	45.1	22.3
1948	3	41.1	24.0
1949	3	42.3	23.8
1950	3	41.6	24.1
1951	3	38.7	26.0
1952	3	37.5	26.6
1953	3	37.4	26.8
1954	3	37.2	26.9
1955	3	37.4	26.8
1956	3	36.6	27.2
1957	3	35.4	28.1
1958	3	34.5	28.9
1959	4	45.7	29.2
1960	4	45.1	29.6
1961	4	44.5	29.9
1962	4	44.1	30.3
1963	5	54.4	30.6
1964	5	53.7	31.0
1965	5	52.8	31.5
1966	5	51.4	32.5
1967	5	50.0	33.4
1968	6	57.4	34.8
1969	6	54.4	36.7
1970	6	51.4	38.8
1971	8	65.6	40.5
1972	8	63.8	41.8
1973	8	60.3	44.4
1974	10	67.6	49.3
1975	10	61.6	53.8
1976	13	76.0	56.9
1977	13	71.2	60.6
1978	15	76.2	65.2
1979	15	68.5	72.6
1980	15	60.6	82.4
1981	18	65.6	90.9
1982	20	68.5	96.5
1983	20	66.9	99.6
1984	20	64.2	103.9
1985	22	68.2	107.6
1986	22	67.1	109.6
1987	22	64.6	113.6
1988	25	70.5	118.3
1989	25	67.1	124.0
1990	25	64.0	130.7
1991	29	71.1	136.2
1992	29	68.9	140.3
1993	29	67.1	144.5
1994	29	65.3	148.2
1995	32	70.1	152.4
1996	32	68.1	156.9
1997	32	66.6	160.5
1998	32	65.5	163.0
1999	33	66.1	166.6
2000	33	63.8	172.2
2001	34	64.0	177.1
2002	37	68.6	179.9
2003	37	67.2	184.0
2004	37	65.2	188.9
2005	37	63.2	195.3
2006	39	64.0	201.6
2007	41	65.7	207.3
2008	42	63.8	215.3
2009	44	68.2	214.5
2010	44	67.4	218.1
2011	44	65.0	224.9
2012	45	65.6	229.6
2013	46	65.8	233.0
2014	49	68.7	236.7
2015	49	68.6	237.0
2016	47	65.2	240.0
2017	49	66.8	245.1
2018	50	66.3	251.1
2019	55	71.6	255.7
2020	55	70.9	258.8
2021	55	67.3	271.0
2022	60	67.6	292.7
2023	66	72.1	304.7
2024	73	77.5	313.7
2025	78	80.6	322.2
2026 Jul	82	82.0	331.2