Lassen Volcanic Visitation By Year

Below is a table showing the annual visitation for every year that the statistic has been kept. In the case of Lassen Volcanic, this runs from 1917 to present. These are the official numbers reported by the National Park Service. Counting methods sometimes change over time, which may account for occasional irregularities.

Year	Visitors
2021	359,635
2020	542,274
2019	517,039
2018	499,435
2017	507,256
2016	536,068
2015	468,092
2014	432,977
2013	427,409
2012	407,653
2011	351,269
2010	384,570
2009	365,639
2008	377,361
2007	395,057
2006	388,741
2005	365,535
2004	379,667
2003	404,384
2002	388,149
2001	376,695
2000	374,911
1999	353,756
1998	318,049
1997	391,816
1996	351,632
1995	351,001
1994	385,489
1993	434,264
1992	468,011
1991	463,179
1990	460,917
1989	466,115
1988	495,628
1987	472,431
1986	439,723
1985	451,497
1984	463,275
1983	429,867
1982	414,859
1981	415,045
1980	394,425
1979	380,014
1978	442,192
1977	381,200
1976	461,400
1975	444,500
1974	408,700
1973	496,200
1972	504,641
1971	447,400
1970	466,600
1969	435,700
1968	442,800
1967	358,300
1966	462,500
1965	400,300
1964	407,700
1963	369,300
1962	399,000
1961	460,000
1960	401,800
1959	379,900
1958	346,700
1957	327,300
1956	303,800
1955	304,400
1954	282,400
1953	225,328
1952	212,550
1951	203,609
1950	183,815
1949	172,496
1948	160,707
1947	149,848
1946	99,067
1945	45,225
1944	19,060
1943	18,971
1942	48,144
1941	109,272
1940	104,619
1939	100,880
1938	73,005
1937	86,757
1936	76,971
1935	52,294
1934	51,906
1933	45,577
1932	41,723
1931	56,833
1930	31,755
1929	26,106
1928	26,057
1927	20,089
1926	18,739
1925	12,596
1924	12,500
1923	9,500
1922	10,000
1921	10,000
1920	2,000
1919	2,500
1918	2,000
1917	8,500