Untitled Document

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jun. 30, 2017
Registrant Name	dei_EntityRegistrantName	T. ROWE PRICE NEW AMERICA GROWTH FUND, INC.
Central Index Key	dei_EntityCentralIndexKey	0000773485
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 24, 2017
Document Effective Date	dei_DocumentEffectiveDate	Oct. 30, 2017
Prospectus Date	rr_ProspectusDate	Oct. 30, 2017

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Document Type

dei_DocumentType

485BPOS

Document Period End Date

dei_DocumentPeriodEndDate

Jun. 30, 2017

Registrant Name

dei_EntityRegistrantName

T. ROWE PRICE NEW AMERICA GROWTH FUND, INC.

Central Index Key

dei_EntityCentralIndexKey

0000773485

Amendment Flag

dei_AmendmentFlag

false

Document Creation Date

dei_DocumentCreationDate

Oct. 24, 2017

Document Effective Date

dei_DocumentEffectiveDate

Oct. 30, 2017

Prospectus Date

rr_ProspectusDate

Oct. 30, 2017

Shareholder Fees - T. ROWE PRICE NEW AMERICA GROWTH FUND, INC. - USD ($)

Investor Class

I Class

Advisor Class

Maximum account fee

$ 20

^[1]

Annual Fund Operating Expenses - T. ROWE PRICE NEW AMERICA GROWTH FUND, INC.

Investor Class

I Class

Advisor Class

Management fees

0.64%

Distribution and service (12b-1) fees

0.25%

Other expenses

0.16%

0.02%

0.18%

Total annual fund operating expenses

0.80%

0.66%

1.07%

Expense Example - T. ROWE PRICE NEW AMERICA GROWTH FUND, INC. - USD ($)

1 year

3 years

5 years

10 years

Investor Class

255

444

990

I Class

211

368

822

Advisor Class

109

340

590

1,306

Average Annual Total Returns - T. ROWE PRICE NEW AMERICA GROWTH FUND, INC.

1 Year

5 Years

10 Years

Since inception

Inception date

Investor Class

1.40%

13.56%

8.93%

Sep. 30, 1985

Investor Class | Returns after taxes on distributions

(0.02%)

11.25%

7.39%

Sep. 30, 1985

Investor Class | Returns after taxes on distributions and sale of fund shares

1.93%

10.47%

6.97%

Sep. 30, 1985

I Class

1.52%

1.16%

Dec. 17, 2015

Advisor Class

1.13%

13.26%

8.66%

Dec. 30, 2005

S&P 500 Index (reflects no deduction for fees, expenses, or taxes)

11.96%

14.66%

6.95%

11.67%

^[1]

Dec. 17, 2015

Russell 1000 Growth Index

7.08%

14.50%

8.33%

6.81%

^[1]

Dec. 17, 2015

Lipper Multi-Cap Growth Funds Index

3.05%

13.30%

6.90%

3.18%

^[1]

Dec. 17, 2015

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Distribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.
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Risk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.
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Total Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."
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Include the caption "Maximum Account Fees" only if the Fund charges these fees. A Fund may omit other captions if the Fund does not charge the fees or expenses covered by the captions. Disclose account fees that may be charged to a typical investor in the Fund; fees that apply to only a limited number of shareholders based on their particular circumstances need not be disclosed. Include a caption describing the maximum account fee (e.g., "Maximum Account Maintenance Fee" or "Maximum Cash Management Fee"). State the maximum annual account fee as either a fixed dollar amount or a percentage of assets. Include in a parenthetical to the caption the basis on which any percentage is calculated. If an account fee is charged only to accounts that do not meet a certain threshold (e.g., accounts under $5)
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Investment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).
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"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.
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T. ROWE PRICE NEW AMERICA GROWTH FUND, INC.

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Oct. 30, 2017

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Oct. 24, 2017


Exhibit	Exhibit No.
XBRL Instance Document	EX-101.INS
XBRL Taxonomy Extension Schema Document	EX-101.SCH
XBRL Taxonomy Extension Calculation Linkbase Document	EX-101.CAL
XBRL Taxonomy Extension Definition Linkbase Document	EX-101.DEF
XBRL Taxonomy Extension Labels Linkbase Document	EX-101.LAB
XBRL Taxonomy Extension Presentation Linkbase Document	EX-101.PRE


Signature	Title	Date


/s/Edward C. Bernard	Chairman of the Board	November 13, 2017
Edward C. Bernard	(Chief Executive Officer)


/s/Catherine D. Mathews	Treasurer	November 13, 2017
Catherine D. Mathews	(Chief Financial Officer)
	and Vice President

*
Anthony W. Deering	Director	November 13, 2017


*
Bruce W. Duncan	Director	November 13, 2017


*
Robert J. Gerrard, Jr.	Director	November 13, 2017


*
Paul F. McBride	Director	November 13, 2017


*
Cecilia E. Rouse	Director	November 13, 2017


*
John G. Schreiber	Director	November 13, 2017



/s/Robert W. Sharps	Director	November 13, 2017
Robert W. Sharps



*
Mark. R. Tercek	Director	November 13, 2017


*/s/David Oestreicher	Vice President and	November 13, 2017
David Oestreicher	Attorney-In-Fact


ALL CORPORATIONS/TRUSTS /s/Edward C. Bernard
Edward C. Bernard /s/Catherine D. Mathews	Chairman of the Board (Principal Executive Officer) Director/Trustee	April 27, 2017
Catherine D. Mathews /s/Anthony W. Deering	Treasurer (Principal Financial Officer) Vice President	April 27, 2017
Anthony W. Deering /s/Bruce W. Duncan	Director/Trustee	April 27, 2017
Bruce W. Duncan /s/Robert J. Gerrard, Jr.	Director/Trustee	April 27, 2017
Robert J. Gerrard, Jr. /s/Paul F. McBride	Director/Trustee	April 27, 2017
Paul F. McBride /s/Cecilia E. Rouse	Director/Trustee	April 27, 2017
Cecilia E. Rouse /s/John G. Schreiber	Director/Trustee	April 27, 2017
John G. Schreiber /s/Mark R. Tercek	Director/Trustee	April 27, 2017
Mark R. Tercek	Director/Trustee	April 27, 2017


Darrell N. Braman, Secretary