The Northwest Crossroads Conference is a seven-member IHSAA-sanctioned athletic conference. Six of the seven institutions are in Lake County, while the sixth, Kankakee Valley, is in neighboring Jasper County. This conference was created in 2007, following the disbandment of the Lake Athletic Conference. Griffith left the conference after the 2016–17 school year to join the Greater South Shore Athletic Conference (IHSAA).
Hanover Central, in southern Lake County, joined the conference as its seventh member starting in 2023.
| School | Location | Mascot | Colors | Enrollment 2021 | IHSAA Class |
| Joined | |
|---|---|---|---|---|---|---|---|---|
| Andrean | Merrillville | Fighting 59'ers | 384 | 2A Football 2A Basketball 3A Baseball | 45 Lake | 2008 | ||
| Hanover Central | Cedar Lake | Wildcats | 948 | 3A Football 3A Basketball | 45 Lake | 2023 | ||
| Highland | Highland | Trojans | 1,061 | 4A Football 3A Basketball | 45 Lake | 2008 | ||
| Hobart | Hobart | Brickies | 1,265 | 4A Football 4A Basketball | 45 Lake | 2008 | ||
| Kankakee Valley | Wheatfield | Kougars | 1,021 | 4A Football 4A Basketball | 37 Jasper | 2008 | ||
| Lowell | Lowell | Red Devils | 1,093 | 4A Football 4A Basketball | 45 Lake | 2008 | ||
| Munster | Munster | Mustangs | 1,588 | 5A Football 4A Basketball | 45 Lake | 2008 |
| Team | Seasons | ||
| 8 | Andrean | 2011, 2012*, 2013, 2014, 2018, 2020, 2021*, 2022* | |
| 7 | Lowell | 2007*, 2008, 2009*, 2015, 2017, 2021*, 2022* | |
| 6 | Hobart | 2007*, 2012*, 2016*, 2019, 2021*, 2022* | |
| 2 | Griffith | 2010, 2016* | |
| 1 | Hanover Central | 2023 | |
| 1 | Kankakee Valley | 2012* | |
| 1 | Munster | 2009* | |
| 0 | Highland |
| Team | Seasons | ||
| 15 | Munster | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2018*, 2019, 2020, 2021, 2022, 2023, 2024 | |
| 2 | Griffith | 2016*, 2017 | |
| 1 | Lowell | 2016* | |
| 1 | Andrean | 2018* | |
| 0 | Highland | ||
| 0 | Hobart | ||
| 0 | Kankakee Valley |
| Team | Seasons | ||
| 4 | Hobart | 2009*, 2010, 2011, 2015 | |
| 4 | Kankakee Valley | 2016, 2017, 2018, 2019 | |
| 3 | Lowell | 2012, 2013, 2014* | |
| 3 | Munster | 2009*, 2020, 2024 | |
| 3 | Andrean | 2021, 2022, 2023 | |
| 2 | Highland | 2008, 2014* | |
| 0 | Griffith | ||
| 0 | Hanover Central |
| Team | Seasons | ||
| 0 | Hobart | ||
| 0 | Lowell | ||
| 0 | Highland | ||
| 13 | Munster | 2009, 2010, 2011, 2012*, 2013, 2014, 2015, 2016, 2017*, 2018, 2019*,2020, 2021 | |
| 0 | Andrean | ||
| 0 | Griffith | ||
| 3 | Kankakee Valley | 2012*, 2017*, 2019* |