合興車站
利用狀況

根據2023年資料，本站每日旅運量約為160，在台鐵各站中排行第197名。
| -2000年> 年.年 | -2000年> 年間.上車 | -2000年> 年間.下車 | -2000年> 年間.上下車 | -2000年> 年間.來源 | -2000年> 1日平均.上車 | -2000年> 1日平均.上下車 |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
1950: 沒資料（12月27日啟用）
| 1951 | 33,244 | 31,082 | 64,326 |  | 91 | 176 |  |
| 1952 | 33,668 | 32,502 | 66,170 |  | 92 | 181 |  |
| 1953 | 31,180 | 29,632 | 60,812 |  | 85 | 167 |  |
| 1954 | 52,030 | 23,685 | 75,715 |  | 143 | 207 |  |
| 1955 | 沒資料 | 沒資料 | 沒資料 | 沒資料 | 沒資料 | 沒資料 |  |
| 1956 | 沒資料 | 沒資料 | 沒資料 | 沒資料 | 沒資料 | 沒資料 |  |
| 1957 | 44,205 | 40,589 | 84,794 |  | 121 | 232 |  |
| 1958 | 75,742 | 37,301 | 113,043 |  | 208 | 310 |  |
| 1959 | 沒資料 | 沒資料 | 沒資料 | 沒資料 | 沒資料 | 沒資料 |  |
| 1960 | 44,344 | 37,119 | 81,463 |  | 121 | 223 |  |
| 1961 | 59,615 | 52,803 | 112,418 |  | 163 | 308 |  |
| 1962 | 39,746 | 40,791 | 80,537 |  | 109 | 221 |  |
| 1963 | 24,610 | 26,800 | 51,410 |  | 67 | 141 |  |
| 1964 | 36,856 | 40,791 | 77,647 |  | 101 | 212 |  |
| 1965 | 35,575 | 39,375 | 74,950 |  | 97 | 205 |  |
| 1966 | 34,798 | 39,375 | 74,173 |  | 95 | 203 |  |
| 1967 | 27,969 | 35,642 | 63,611 |  | 77 | 174 |  |
| 1968 | 35,061 | 44,055 | 79,116 |  | 96 | 216 |  |
| 1969 | 55,159 | 65,016 | 120,175 |  | 151 | 329 |  |
| 1970 | 75,920 | 86,172 | 162,092 |  | 208 | 444 |  |
| 1971 | 100,445 | 107,603 | 208,048 |  | 275 | 570 |  |
| 1972 | 100,934 | 106,467 | 207,401 |  | 276 | 567 |  |
| 1973 | 108,156 | 112,926 | 221,082 |  | 296 | 606 |  |
| 1974 | 127,726 | 131,355 | 259,081 |  | 350 | 710 |  |
| 1975 | 134,449 | 136,828 | 271,277 |  | 368 | 743 |  |
| 1976 | 135,430 | 138,779 | 274,209 |  | 370 | 749 |  |
| 1977 | 119,840 | 120,932 | 240,772 |  | 328 | 660 |  |
| 1978 | 111,579 | 112,489 | 224,068 |  | 306 | 614 |  |
| 1979 | 60,884 | 62,729 | 123,613 |  | 167 | 339 |  |
| 1980 | 52,398 | 51,528 | 103,926 |  | 143 | 284 |  |
| 1981 | 36,540 | 34,496 | 71,036 |  | 100 | 195 |  |
| 1982 | 27,420 | 25,738 | 53,158 |  | 75 | 146 |  |
| 1983 | 14,852 | 13,737 | 28,589 |  | 41 | 78 |  |
| 1984 | 15,048 | 13,081 | 28,129 |  | 41 | 77 |  |
| 1985 | 15,576 | 14,539 | 30,115 |  | 43 | 83 |  |
| 1986 | 12,518 | 13,324 | 25,842 |  | 34 | 71 |  |
| 1987 | 12,242 | 12,292 | 24,534 |  | 34 | 67 |  |
| 1988 | 9,684 | 8,445 | 18,129 |  | 26 | 50 |  |
| 1989 | 7,778 | 6,823 | 14,601 |  | 21 | 40 |  |
| 1990 | 8,115 | 7,265 | 15,380 |  | 22 | 42 |  |
| 1991 | 7,305 | 7,440 | 14,745 |  | 20 | 40 |  |
| 1992 | 7,199 | 6,891 | 14,090 |  | 20 | 38 |  |
| 1993 | 6,907 | 6,599 | 13,506 |  | 19 | 37 |  |
| 1994 | 6,346 | 5,738 | 12,084 |  | 17 | 33 |  |
| 1995 | 7,279 | 6,145 | 13,424 |  | 20 | 37 |  |
| 1996 | 4,211 | 2,875 | 7,086 |  | 12 | 19 |  |
| 1997 | 4,858 | 2,203 | 7,061 |  | 13 | 19 |  |
| 1998 | 5,964 | 4,546 | 10,510 |  | 16 | 29 |  |
| 1999 | 7,089 | 4,314 | 11,403 |  | 19 | 31 |  |
| 2000 | 8,671 | 5,351 | 14,022 |  | 24 | 38 |  |
| 2001年-> 年.年 | 2001年-> 年間.上車 | 2001年-> 年間.下車 | 2001年-> 年間.上下車計 | 2001年-> 年間.來源 | 2001年-> 單日平均.上車 | 2001年-> 單日平均.上下車 |
| --- | --- | --- | --- | --- | --- | --- |
| 2001 | 4,981 | 7,640 | 12,621 |  | 12 | 33 |
| 2002 | 9,565 | 12,711 | 22,276 |  | 26 | 61 |
| 2003 | 11,958 | 15,589 | 27,547 |  | 33 | 75 |
| 2004 | 11,763 | 11,119 | 24,882 |  | 32 | 68 |
| 2005 | 9,771 | 11,338 | 21,109 |  | 27 | 58 |
| 2006 | 11,070 | 12,436 | 23,506 |  | 30 | 64 |
| 2007 | 10,195 | 10,328 | 20,523 |  | 28 | 56 |
| 2008 | 11,394 | 10,927 | 22,321 |  | 31 | 61 |
| 2009 | 12,346 | 12,914 | 25,260 |  | 34 | 69 |
| 2010 | 11,519 | 9,164 | 20,683 |  | 32 | 57 |
| 2011 | 11,177 | 9,982 | 21,159 |  | 31 | 58 |
| 2012 | 15,762 | 17,226 | 32,988 |  | 43 | 90 |
| 2013 | 15,775 | 21,016 | 36,791 |  | 43 | 101 |
| 2014 | 23,950 | 30,678 | 54,628 |  | 66 | 150 |
| 2015 | 48,079 | 57,445 | 105,524 |  | 132 | 289 |
| 2016 | 44,741 | 52,730 | 97,471 |  | 122 | 266 |
| 2017 | 41,463 | 49,125 | 90,588 |  | 114 | 248 |
| 2018 | 37,251 | 43,763 | 81,014 |  | 102 | 222 |
| 2019 | 35,567 | 42,979 | 78,546 |  | 97 | 215 |
| 2020 | 26,270 | 32,188 | 58,458 |  | 72 | 160 |
| 2021 | 22,338 | 27,384 | 49,722 |  | 61 | 136 |
| 2022 | 17,098 | 23,519 | 40,617 |  | 47 | 111 |
| 2023 | 25,128  | 33,398  | 58,526  |  | 69  | 160  |