Skip to content
Gridcensus

Datacenter Sites in Monona County, Iowa

Monona County has 19 scored datacenter candidate sites averaging 53.6/100 DC Readiness, with a catalogued aggregate of 900 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Monona County, Iowa has 19 scored datacenter candidate sites averaging 53.6/100 DC Readiness, roughly in line with the Iowa average of 56.3. It ranks 41st of 85 Iowa counties by number of sites and 76th by average score. The top-scoring site is EC Coal Monona County · 3986c0f3 at 59.6/100.

19
Candidate sites
53.6/100
Avg DC Readiness
900 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 19 in Monona County

Site-selection context for Monona County

Yessales_tax_exemption
Datacenter tax incentive
8.27¢/kWh
Commercial electricity
6.31¢/kWh
Industrial electricity
4
Fiber providers
Low
Water stress
$8,044
Land price / acre
900
Cooling degree days
6,500
Heating degree days
48°F
Mean annual temp

Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.

How does Monona County compare with other counties in Iowa?

By number of scored sites, Monona County ranks 41st of the 85 Iowa counties with a county page, holding 0.7% of the state's 2,572 sites. Its average DC Readiness of 53.6/100 ranks 76th in the state and is roughly in line with the national average of 53.0. Nationally it has the 1783rd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 1 score 55 or higher.

What types of datacenter sites are in Monona County?

Substation-Adjacent sites are the most common (17, 89% of the county's inventory), followed by greenfield (2). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.

What are power cost, hazard, water and fiber conditions in Monona County?

Industrial electricity averages 6.31¢/kWh and commercial 8.27¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (30). WRI water stress is low. 4 fiber providers report service in the county. The climate runs 900 cooling degree days a year with a mean temperature of 48°F. Land is valued around $8,044 an acre.

By site type

Top datacenter sites in Monona County

Top datacenter sites in Monona County
SiteTypeVoltageCapacityQueue waitScore
EC Coal Monona CountyGreenfield——4.3 yrs59.6
UNKNOWN130996Substation-Adjacent161 kV100 MW4.3 yrs54.8
UNKNOWN167951Substation-Adjacent69 kV50 MW4.3 yrs54.3
EC Coal Monona CountyGreenfield——4.3 yrs54.2
TAP167950Substation-Adjacent69 kV50 MW4.3 yrs54.2
TAP167625Substation-Adjacent69 kV50 MW4.3 yrs53.6
UNKNOWN130432Substation-Adjacent69 kV50 MW4.3 yrs53.5
TAP167627Substation-Adjacent69 kV50 MW4.3 yrs53.5
TAP167628Substation-Adjacent69 kV50 MW4.3 yrs53.4
UNKNOWN167622Substation-Adjacent69 kV50 MW4.3 yrs53.4
UNKNOWN167630Substation-Adjacent69 kV50 MW4.3 yrs53.4
TAP167629Substation-Adjacent69 kV50 MW4.3 yrs53.4
TAP167632Substation-Adjacent69 kV50 MW4.3 yrs53.0
UNKNOWN167635Substation-Adjacent69 kV50 MW4.3 yrs52.9
TAP167634Substation-Adjacent69 kV50 MW4.3 yrs52.6
UNKNOWN167624Substation-Adjacent69 kV50 MW4.3 yrs52.3
UNKNOWN167633Substation-Adjacent69 kV50 MW4.3 yrs52.3
UNKNOWN167637Substation-Adjacent69 kV50 MW4.3 yrs52.1
TAP167636Substation-Adjacent69 kV50 MW4.3 yrs52.0

Every scored site in Monona County

All 19 sites, best first.

Monona County datacenter FAQ

How many datacenter sites are in Monona County?

19 scored datacenter candidate sites, averaging 53.6/100 DC Readiness. That is the 41st-most of 85 Iowa counties with five or more sites.

What is the highest-scoring datacenter site in Monona County?

EC Coal Monona County · 3986c0f3 scores 59.6/100 DC Readiness, the highest of the 19 scored sites in Monona County (a greenfield site).

Does Monona County offer datacenter tax incentives?

Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.

What is the natural-hazard risk in Monona County?

FEMA's National Risk Index rates Monona County as "Relatively Moderate" (score 30).

What are industrial electricity rates in Monona County?

Average industrial electricity is 6.31¢/kWh and commercial is 8.27¢/kWh in Monona County.

More in Iowa

About this data

Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Datacenter candidate sites in Monona County, Iowa”, https://gridcensus.com/datacenter-sites/iowa/monona-county (data as of November 13, 2026).

Dataset updated . Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score for Monona County, Iowa is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.

See plansTalk to us