The 1998 NCAA Division II football rankings are from the NCAA Division II football committee. This is for the 1998 season.
| Increase in ranking | ||
| Decrease in ranking | ||
| Not ranked previous week | ||
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Win–loss record | |
(Italics)
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Number of first place votes | |
т
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Tied with team above or below also with this symbol |
| Preseason [1] | Week 1 Sept 22[2] | Week 2 Sept 29[3] | Week 3 Oct 6[4] | Week 4 Oct 13[5] | Week 5 Oct 20[6] | Week 6 Oct 27[7] | Week 7 Nov 3[8] | Week 8 Nov 10[9] | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Northern Colorado (4) | Northern Colorado (3–0) (4) | Northern Colorado (4–0) (4) | Northern Colorado (5–0) (4) | Northern Colorado (6–0) (4) | Northern Colorado (7–0) (4) | Central Oklahoma (8–0) (4) | Central Oklahoma (9–0) (4) | Central Oklahoma (10–0) (4) | 1. |
| 2. | UC Davis | UC Davis (3–0) | IUP (4–0) | IUP (5–0) | Central Oklahoma (6–0) | Central Oklahoma (7–0) | Northwest Missouri State (8–0) | Northwest Missouri State (9–0) | Northwest Missouri State (10–0) | 2. |
| 3. | Carson–Newman | Southern Arkansas (3–0) | Central Oklahoma (4–0) | Central Oklahoma (5–0) | Northwest Missouri State (6–0) | Grand Valley State (7–0) т | Carson–Newman (6–1) | Carson–Newman (7–1) | Carson–Newman (9–1) | 3. |
| 4. | New Haven | IUP (3–0) | Northwest Missouri State (4–0) | Northwest Missouri State (5–0) | Grand Valley State (6–0) | Northwest Missouri State (7–0) т | UC Davis (7–1) т | UC Davis (8–1) | UC Davis (9–1) | 4. |
| 5. | Pittsburg State | Central Oklahoma (3–0) т | North Alabama (2–1) | North Alabama (3–1) | UC Davis (5–1) | Carson–Newman (6–1) т | Slippery Rock (7–1) т | Slippery Rock (8–1) | Slippery Rock (9–1) | 5. |
| 6. | Texas A&M–Kingsville | Northwest Missouri State (3–0) т | Grand Valley State (4–0) | Grand Valley State (5–0) т | Carson–Newman (5–1) | UC Davis (6–1) т | Northern Colorado (7–1) | Northern Colorado (8–1) | Northern Colorado (9–1) | 6. |
| 7. | North Dakota State | North Alabama (1–1) | UC Davis (3–1) | UC Davis (4–1) т | Slippery Rock (5–1) | Slippery Rock (6–1) | North Dakota (6–1) | North Dakota (7–1) | North Dakota (8–1) | 7. |
| 8. | Albany State | Grand Valley State (3–0) т | Carson–Newman (3–1) | Carson–Newman (4–1) | West Texas A&M (5–1) | Fort Valley State (7–0) т | IUP (7–1) | IUP (8–1) | IUP (9–1) | 8. |
| 9. | Northwest Missouri State | North Dakota (2–0) т | North Dakota (3–0) | West Texas A&M (4–1) | Fort Valley State (6–0) | West Texas A&M (6–1) т | Southern Arkansas (6–1) | Albany State (8–1) | Albany State (9–1) | 9. |
| 10. | Southern Arkansas | Carson–Newman (2–1) т | West Texas A&M (3–1) | Slippery Rock (4–1) | Central Missouri State (6–0) | West Georgia (7–0) | Grand Valley State (7–1) | Emporia State (8–1) | Emporia State (9–1) | 10. |
| 11. | Grand Valley State | West Texas A&M (2–0) т | Emporia State (4–0) | Fort Valley State (5–0) | Eastern New Mexico (6–0) т | North Dakota (5–1) | Emporia State (7–1) | Texas A&M–Kingsville (7–2) | Texas A&M–Kingsville (8–2) | 11. |
| 12. | Slippery Rock | Emporia State (2–1) | Slippery Rock (3–1) | Central Missouri State (5–0) | Nebraska–Omaha (5–1) т | Eastern New Mexico (7–0) | Albany State (7–1) | Fort Valley State (8–1) | Fort Valley State (9–1) | 12. |
| 13. | Central Oklahoma | Slippery Rock (2–1) | Fort Valley State (5–0) | Eastern New Mexico (5–0) | Saginaw Valley State (6–0) | IUP (6–1) | Texas A&M–Kingsville (6–2) | Shepherd (7–1) | Shepherd (8–1) | 13. |
| 14. | North Alabama | Eastern New Mexico (3–0) | Eastern New Mexico (4–0) | Nebraska–Omaha (4–1) | West Georgia (5–1) | Southern Arkansas (5–1) | Fort Valley State (7–1) | Grand Valley State (7–2) | Grand Valley State (8–2) | 14. |
| 15. | Chadron State | Fort Valley State (2–1) | Southern Arkansas (3–1) | Southern Arkansas (4–1) | Southern Arkansas (4–1) | Emporia State (6–1) | Nebraska–Omaha (6–2) | West Texas A&M (7–2) | West Texas A&M (8–2) | 15. |
| 16. | North Dakota | Central Missouri State (3–0) т | Saginaw Valley State (4–0) | Saginaw Valley State (5–0) | Chadron State (5–1) | Saginaw Valley State (6–1) | Eastern New Mexico (7–1) | Nebraska–Omaha (7–2) | Nebraska–Omaha (8–2) | 16. |
| 17. | Saginaw Valley State | Saginaw Valley State (3–0) т | Central Missouri State (4–0) | Chadron State (4–1) | North Dakota (4–1) | Albany State (6–1) | West Georgia (7–1) | Delta State (8–1) | Delta State (7–2) | 17. |
| 18. | Angelo State | Albany State (3–1) т | Albany State (4–1) т | Emporia State (4–1) | IUP (5–1) | Pittsburg State (5–1) | Shepherd (6–1) | West Georgia (8–1) | West Georgia (9–1) | 18. |
| 19. | Virginia State | Nebraska–Omaha (3–0) т | Nebraska–Omaha (3–1) т | Albany State (5–1) | Albany State (5–1) т | Texas A&M–Kingsville (5–1) | Pittsburg State (5–2) т | Eastern New Mexico (7–2) т | Chadron State (8–2) | 19. |
| 20. | IUP | Chadron State (2–1) | Chadron State (3–1) | North Dakota (3–1) | Emporia State (5–1) т | Central Missouri State (6–1) | West Texas A&M (6–2) т | Pittsburg State (6–2) т | Winona State (8–2) | 20. |
| Preseason [1] | Week 1 Sept 22[2] | Week 2 Sept 29[3] | Week 3 Oct 6[4] | Week 4 Oct 13[5] | Week 5 Oct 20[6] | Week 6 Oct 27[7] | Week 7 Nov 3[8] | Week 8 Nov 10[9] | ||
Dropped:
| None | None | Dropped: 5 North Alabama | Dropped:
| Dropped:
| Dropped: 9 Southern Arkansas | Dropped:
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| Pre-divisional |
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| NCAA University Division |
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| NCAA Division I |
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| NCAA Division I-A/FBS |
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| NCAA Division I-AA/FCS |
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| Small college |
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| NCAA Division II |
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| NCAA Division III |
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| Polls |
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