Iowa Highway 21

state highway in Iowa, United States
Place road Q1192306
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Iowa Highway 21

Summary

Iowa Highway 21 is a road[1]. It ranks in the top 3% of road entities by monthly Wikipedia readership (2 views/month).[2]

Key Facts

  • Iowa Highway 21 is located in Iowa[3].
  • Iowa Highway 21 is in the country of United States[4].
  • Iowa Highway 21's traffic sign is recorded as Iowa 21.svg[5].
  • Iowa Highway 21's route map is recorded as Iowa 21 map.svg[6].
  • Iowa Highway 21's transport network is recorded as Iowa state highways[7].
  • Iowa Highway 21's instance of is recorded as road[8].
  • Iowa Highway 21's maintained by is recorded as Iowa Department of Transportation[9].
  • Iowa Highway 21's owned by is recorded as Iowa Department of Transportation[10].
  • Iowa Highway 21's Commons category is recorded as Iowa Highway 21[11].
  • Iowa Highway 21's OpenStreetMap relation ID is recorded as 2114210[12].
  • Iowa Highway 21's Freebase ID is recorded as /m/02841bv[13].
  • Iowa Highway 21's partially coincident with is recorded as Iowa Highway 8[14].
  • Iowa Highway 21's road number is recorded as 21[15].
  • Iowa Highway 21's length is recorded as {'unit': 'http://www.wikidata.org/entity/Q253276', 'amount': '+97.152'}[16].
  • Iowa Highway 21's KML file is recorded as Template:Attached KML/Iowa Highway 21[17].

Body

Geography

Iowa Highway 21 is in the country of United States[4]. It is located in Iowa[3].

Physical Characteristics

Iowa Highway 21's length is recorded as {'unit': 'http://www.wikidata.org/entity/Q253276', 'amount': '+97.152'}[16].

Designation and Status

Iowa Highway 21's instance of is recorded as road[8].

History and Context

Iowa Highway 21's owned by is recorded as Iowa Department of Transportation[10].

Why It Matters

Iowa Highway 21 ranks in the top 3% of road entities by monthly Wikipedia readership (2 views/month).[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [5] . wikidata.org.
  2. [6] . wikidata.org.
  3. [7] . wikidata.org.
  4. [4] . wikidata.org.
  5. [8] . wikidata.org.
  6. [9] . wikidata.org.
  7. [10] . wikidata.org.
  8. [3] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Iowa Highway 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/iowa-highway-21
MLA “Iowa Highway 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/iowa-highway-21.
BibTeX @misc{4ortxyz_iowa-highway-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Iowa Highway 21}}, year = {2026}, url = {https://4ort.xyz/entity/iowa-highway-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Iowa Highway 21 — https://4ort.xyz/entity/iowa-highway-21 (retrieved 2026-05-03)

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